what was the purpose of each of the tubes used in this experiment? which tubes were controls?

Answers

Answer 1

In the experiment, each tube used for a specific purpose. The purpose of each tube used in the experiment is listed below :Tubes used in the experiment: A Durham tube is a test tube containing Durham fluid which is used to detect the production of gas.

Tube 1: Glucose, Durham, and inverted tubeTubes 2-3: Starch, Durham, and inverted tubeTube 4: Lactose, Durham, and inverted tubeTube 5: Sucrose, Durham, and inverted tubeTube 6: No sugar, Durham, and inverted tubeThe controls in the experiment: Tube 6: No sugar, Durham, and inverted tube

The experiment demonstrates how bacteria ferment different sugars. The test is performed using a Durham tube that contains a small, inverted glass vial within the test tube.The small, inverted vial is used to capture any gas that is produced by bacteria fermentation. In each tube, a different type of sugar is used to test if bacteria is able to ferment the sugar. A Durham tube is used for all of the sugar-containing tubes, except for the no sugar control, which also has a Durham tube.

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Related Questions

Calculate the pH of a solution formed by mixing 100. 0 mL of 0. 100 M NaF and 100. 0 mL of 0. 060 M HCl. Ka of HF = 7. 24 x 10-4

Answers

The given question requires us to calculate the pH of a solution formed by mixing 100.0 mL of 0.100 M NaF and 100.0 mL of 0.060 M HCl. The Ka of HF is given as 7.24 × 10-4. The following is the step-by-step explanation of how to calculate the pH of the given solution.

Mixing 100.0 mL of 0.100 M NaF and 100.0 mL of 0.060 M HCl we get:0.100 M × 100.0 mL = 10.0 mmol NaF0.060 M × 100.0 mL = 6.00 mmol HCl. We need to find the final concentration of NaF and HCl and determine if a buffer is formed or not. Initially, we have: NaF → Na+ + F-HCl → H+ + Cl-Therefore, in the final solution, we have: Na+ + H+ + F- + Cl- → Na+ + Cl- + HF. The final concentration of NaF is given by: Concentration = moles/volume= (10.0 mmol)/(200.0 mL)= 0.050 M. Similarly, the final concentration of HCl can be determined to be 0.030 M.

Consequently, the final concentration of HF is:6.00 mmol – 10.0 mmol = –4.00 mmol The negative value implies that all of the NaF has reacted with the HCl and that there is no NaF left over to react with water. This indicates that there is no buffer formed, and the solution will be acidic. We can write the following equilibrium equation for HF:HF (aq) + H2O (l) ⇌ H3O+ (aq) + F- (aq). The Ka for HF is 7.24 × 10-4.Ka = [H3O+][F-]/[HF]We can assume that [H3O+] ≈ [F-]. Hence, we can write the expression as follows: Ka = [H3O+]2/[HF]= (7.24 × 10-4) = [H3O+]2/(0.050)Therefore,[H3O+] = √(7.24 × 10-4 × 0.050) = 1.08 × 10-3 pH = –log[H3O+]= –log(1.08 × 10-3) = 2.97Hence, the pH of the given solution is 2.97.

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Draw the addition products formed when one equivalent of hbr reacts with 2,4‑hexadiene. Draw a single product for each. Ignore stereochemical or chiral isomers.

Answers

The addition products formed after the reaction are 4-bromo-2-hexene and 2-bromo-3-hexene.

What happen when addition of Hbr to alkenes occur?

The simplest type of electrophilic reaction to visualize is the addition of as haloacid such as Hbr to an isolated alkene.

The reaction starts between terminal carbon of the double bonds and H⁺. After attaching H⁺ to the carbon, one double bond disappears leaving nearby CH respectively charged. This intermediate is a resonance hybrid of two possible structures. Reaction of bromide at one of the carbons give the 1.2-addition product and at the other carbon gives 1,4-addition product.

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Draw the addition products formed when one equivalent of hbr reacts with 2,4hexadiene. Draw a single

What is the term for propane and butane fases that can be liquified?

Answers

The term for the propane and butane phases that can be liquefied is "liquefied petroleum gas" or LPG. LPG is a mixture of propane and butane gases that are compressed and cooled to a point where they transition from their gaseous state to a liquid state.

This process of converting the gases into a liquid form allows for easier storage, transportation, and handling. LPG is commonly used as a fuel for heating, cooking, and powering various appliances. It is widely available in portable cylinders and larger storage tanks. LPG has a higher energy content compared to its gaseous form, making it a convenient and efficient fuel source. The ability of propane and butane to be liquefied and stored as LPG is due to their relatively low boiling points and the pressure at which they are compressed. By controlling the temperature and pressure, the gases can be condensed into a liquid state, allowing for greater convenience and versatility in their use.

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Se infla un globo de helio hasta el volumen de 0.045 m3 a la temperatura de 2°C Sí el globo se enfría a -12 °C . ¿Cuál será su nuevo volumen? Considere que la presión no varía

Answers

Hi! the english version of the given question is "A helium balloon is inflated to the volume of 0.045 m3 at a temperature of 2 ° C. If the balloon is cooled to -12 ° C. What will its new volume be? Consider that the pressure does not vary". The answer is given in english.

Answer:

The new volume of balloon is \(0.043\;m^{3}\).

Explanation:

Let's assume the helium gas inside the balloon behaves ideally.

The total number of moles of helium gas inside the balloon remains constant.

Applying combined gas law, we get:

\(\frac{P_{1}V_{1}}{T_{1}}=\frac{P_{2}V_{2}}{T_{2}}\)

Where:

\(P_{1}\;and\;P_{2}\) are the initial and final pressure of the balloon respectively.

\(V_{1}\;and\;V_{2}\) are the initial and final volume of the balloon respectively.

\(T_{1}\;and\;T_{2}\) are the initial and final temperature in the kelvin scale respectively.

Given:

\(P_{1}=P_{2}\)

\(V_{1}=0.045\;m^{3}\)

\(T_{1}=(273+2)\;K=275\;K\)

\(T_{2}=(273-12)\;K=261\;K\)

Substituting the above values, we get:

\(\frac{(0.045\;m^{3})}{275\;K}=\frac{V_{2}}{261\;K}\)

\(\Rightarrow V_{2}=0.043\;m^{3}\)

what has been found regarding the genetic timetable scott and fuller outlined for physical development since the 1960's?

Answers

Scott and Fuller proposed a genetic timetable for physical development during the 1960s, which suggested that specific milestones occur at certain times. However, subsequent studies have revealed that although this genetic timetable remains relevant, there is considerable variability in the timing of developmental milestones.

One significant finding is that the onset of puberty, originally thought to occur around age 13 for girls and age 14 for boys according to Scott and Fuller, has been observed to happen at earlier ages in recent years. Girls as young as 8 years old and boys as young as 9 years old have shown signs of puberty, indicating a shift in the timing of this developmental stage.

Another important aspect related to the genetic timetable is the recognition that physical development is influenced by various factors beyond genetics. Environmental factors, including nutrition and exposure to toxins, can impact physical development and potentially lead to delays or alterations in the typical sequence of developmental milestones.

Additionally, research suggests that cultural factors play a role in physical development. Certain cultural practices or beliefs may influence the timing or progression of developmental milestones, further contributing to the observed variability.

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What is the formula for the ionic compound formed when aluminum bonds with arsenic?

Answers

Answer:

AlAsO4

Explanation:

Aluminium arsenate is an inorganic compound with the formula AlAsO4. It is most commonly found as an octahydrate. It is a colourless solid that is produced by the reaction between sodium arsenate and a soluble aluminium salt.

1. Mountains are most likely formed
a. when glaciers melt.
b. from earthquakes.
C. when land sinks.
d. where tectonic plates collide.

Answers

the correct answer is D

1
1 point
What has more kinetic energy, a 5 kg ball lifted 10 m high, or a 10 kg ball lifted 5 m high?
There is not enough information to answer the question.
They both have the same amount of Potential Energy
The 10 kg ball has more Potential Energy
The 5 kg ball has more Potential Energy
2
1 point
At the beginning of this assessment, you are told that all of the problems take place on
The acceleration due to gravity is different depending on the pl

Answers

1. The kinetic energy and potential energy of both objects will be the same.

2. True. The acceleration due to gravity is different depending on the planet.

What is kinetic energy?

The kinetic energy of an object is energy due to the motion of the object.

K.E = ¹/₂ mv²

where;

m is the mass of the objectv is the speed of the object

The speed of the object at different heights is given as;

v = √2gh

for 5 m high;

v = √ (2 x 9.8x 5)

v = 9.9 m/s

for 10 m high;

v = √ (2 x 10 x 9.8)

v = 14 m/s

K.E for 5 m high;

K.E = ¹/₂ x 10 x 9.9²

K.E = 490 J

for 10 m high;

K.E = ¹/₂ x 5 x 14²

K.E = 490 J

2. The acceleration due to gravity is different depending on the planet.

This statement is true because, the value of acceleration due to gravity on Earth is 9.8 m/s² while that of Mars is 3.72 m/s², and so on.

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The complete question;

1. What has more kinetic energy, a 5 kg ball lifted 10 m high, or a 10 kg ball lifted 5 m high?

There is not enough information to answer the question.They both have the same amount of Potential EnergyThe 10 kg ball has more Potential EnergyThe 5 kg ball has more Potential Energy

2. At the beginning of this assessment, you are told that all of the problems take place on earth.

The acceleration due to gravity is different depending on the planet, true or false?

7. What is the weather of a certain area over a long period of time?
(10 Points)
climate zone
element
climate
O moisture

Answers

Answer:

Climate

Explanation:

Show, in a step by step fashion, your calculations to determine the percent
by volume of a solution that is made by mixing 50 ml of ethanol with 210
ml of water.

Answers

The percent  by volume of a solution : 19.23%

Further explanation

Given

50 ml of ethanol

210  ml of water

Required

The percent  by volume of a solution

Solution

Percent Volume (% v/v) : volume (ml) of solute/100 ml of solution ⇒ ratio of the volume of the solute to total volume of the solution

\(\tt \%solute(v/v)=\dfrac{solute~volume}{solution~volume}\times 100\%\)

solute= Ethanol

solvent=water

Solution = solute+solvent

Total volume of the solution :

\(\tt =volume~of~Ethanol+solume~of~water\\\\=50~ml+210~ml\\\\=260~ml\)

Percent by volume :

\(\tt \%volume=\dfrac{50}{260}\times 100\%\\\\\%volume=19.23\%\)

How do the calculated bond orders for ethane, ethene, and ethyne compare with the bond orders predicted by the Lewis structures?

Answers

Bond orders are calculated by dividing the total number of electrons in bonding orbitals by the total number of bonds.

The Lewis structures of ethane and ethene can be used to predict the bond orders in these molecules. Ethane has a single bond between the carbon atoms, which indicates a bond order of one.

Ethene has a double bond between the carbon atoms, which indicates a bond order of two. The calculated bond orders for ethane and ethene are the same as those predicted by their Lewis structures.

The Lewis structure of ethyne can also be used to predict the bond order. It has a triple bond between the carbon atoms, which indicates a bond order of three. However, the calculated bond order for ethyne is less than three. This is because the electrons in the triple bond are spread out over a larger region, making the bond weaker than expected based on the Lewis structure.

The calculated bond order for ethyne is approximately 2.5, which is lower than the predicted bond order of three based on the Lewis structure.

In summary, the calculated bond orders for ethane and ethene are the same as those predicted by their Lewis structures. The calculated bond order for ethyne is lower than the predicted bond order of three based on the Lewis structure.

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Which of the following statements correctly describe the average rate of a reaction? Select all that apply.
Average reaction rate has a negative value when expressed in terms of reactant concentrations.
The average reaction rate will be the same regardless of the time interval chosen for the calculation.
For the reaction CD, the average reaction rate is expressed as
Average reaction rate expresses the decrease in reactant particles with time.
The average reaction rate generally decreases with time.

Answers

The decreasing availability of reactants and the increasing accumulation of products, which can lead to a decrease in the collision frequency and the reaction rate.

The correct statements that describe the average rate of a reaction are:

The average reaction rate can have a negative value when expressed in terms of reactant concentrations. This is because the rate of consumption of reactants is usually higher than the rate of formation of products.
The average reaction rate depends on the time interval chosen for the calculation. Different time intervals can yield different values for the average rate. However, the instantaneous rate of the reaction is a unique value at any given time.
The expression for the average reaction rate depends on the stoichiometry of the reaction and the units of measurement. For example, for the reaction CD: average rate = -Δ[C]/Δt = Δ[D]/Δt, where [C] and [D] are the concentrations of reactant C and product D, respectively.
The average reaction rate can express the decrease in reactant particles with time, as well as the increase in product particles. This is because the rate of the reaction is proportional to the rate of change of the concentrations of both reactants and products.
The average reaction rate generally decreases with time, as the concentrations of reactants decrease and the concentrations of products increase. This is due to the decreasing availability of reactants and the increasing accumulation of products, which can lead to a decrease in the collision frequency and the reaction rate.

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A classification of matter which stipulates that the compound must contain carbon is called
A.Organic
B.Carbonic
C.Inorganic

Answers

Answer:c

Explanation:

Answer:

It's organic

Explanation:

100 milligrams of Uranium-238 are stored in a container. If Uranium-238 has a half-life of about 4.47 billion years, after how many years will only 10 milligrams be present

Answers

The time (in years) taken for only 10 mg to remain is 14.84 billion years

Data obtained from the questionOriginal amount (N₀) = 100 mgHalf-life (t½) = 4.47 billion yearsAmount remaining (N) = 10 mgTime (t) =?

Determination of the number of half-lives that has elapsed Original amount (N₀) = 100 mgAmount remaining (N) = 10 mgNumber of half-lives (n) =?

N × 2ⁿ = N₀

10 × 2ⁿ = 100

Divide both side by 10

2ⁿ = 100 / 10

2ⁿ = 10

Take the log of both side

Log 2ⁿ = Log 10

nLog 2 = Log 10

Divide both side by Log 2

n = Log 10 / Log 2

n = 3.32

How to determine the time (in years)

Half-life (t½) = 4.47 billion yearsNumber of half-lives (n) = 3.32Time (t) =?

t = n × t½

t = 3.32 × 4.47

t = 14.84 billion years

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which should I choose?

which should I choose?

Answers

Answer:

liquid

Explanation:

thank me


Analysis:
1. List the 5 metals (copper, iron, magnesium, lead, silver) in order of ease of reduction (most easily
reduced first, least easily reduced last)

Answers

Answer:

Magnesium

Iron

Copper

Lead

Silver

Explanation:

what type of plot can be used to determine λ max of a solution?
a. Absorbance vs. concentration b. Absorbance Vs; volume c. Absorbance vs wavelength d. Absorbance VS. transmittance

Answers

The type of plot that can be used to determine λ max of a solution is Absorbance vs wavelength.

The correct option is C.

What is the plot of Absorbance vs wavelength?

The plot of absorbance vs wavelength is called an absorption spectrum or an absorbance spectrum.

In this plot, the x-axis represents the wavelength of light, usually in nanometers (nm), and the y-axis represents the absorbance of the sample at that particular wavelength. The absorbance is a measure of how much light is absorbed by the sample at a specific wavelength.

The absorption spectrum is used to identify the wavelengths at which a substance absorbs light and can be used to determine the identity or concentration of the substance. The pattern of peaks and troughs in the absorption spectrum is unique to each substance, making it a useful tool in analytical chemistry and biochemistry.

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expressthereactioninwhichethanolisconvertedto acetaldehyde (propanal) by nad in the presence of alcohol dehydrogenase as the difference of two half-reactions and write the corresponding reaction quotients for each half-reaction and the overall reaction.

Answers

The conversion of ethanol to acetaldehyde (propanal) by NAD+ in the presence of alcohol dehydrogenase can be expressed as the difference of two half-reactions.

One half-reaction involves the oxidation of ethanol to acetaldehyde, while the other half-reaction involves the reduction of NAD+ to NADH. The corresponding reaction quotients can be calculated for each half-reaction, as well as for the overall reaction.

Explanation:

The half-reactions can be written as follows:

Oxidation of ethanol:

CH3CH2OH + NAD+ -> CH3CHO + NADH + H+

Reduction of NAD+:

NAD+ + 2H+ + 2e- -> NADH

To calculate the reaction quotients for each half-reaction, we need to consider the concentrations of the reactants and products. The reaction quotient for a given half-reaction is the ratio of the product concentrations to the reactant concentrations, raised to the power of their stoichiometric coefficients.

For the oxidation of ethanol half-reaction, the reaction quotient can be written as:

Q1 = [CH3CHO][NADH][H+] / [CH3CH2OH][NAD+]

For the reduction of NAD+ half-reaction, the reaction quotient can be written as:

Q2 = [NADH] / [NAD+][H+]^2

The overall reaction quotient (Q) for the complete reaction is calculated by taking the ratio of the product concentrations to the reactant concentrations, raised to the power of their respective stoichiometric coefficients. In this case, since the two half-reactions are subtracted, the reaction quotient is given by:

Q = Q1 / Q2

The reaction quotients provide a measure of the relative concentrations of the species involved in the reactions and can be used to determine the direction and extent of the reaction.

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An aqueous solution that has a hydrogen ion concentration of 1.0 x 10^-8 mole per liter has a pH of

1) 6, which is basic
2) 6, which is acidic
3) 8, which is basic
4) 8, which is acidic

Answers

Answer: 8, which is basic

Explanation: The hydrogen ion concentration is 1.0 x 10^-8 mole per liter. Using [H+] = 1.0 x 10 -(pH) the pH is 8. A pH above 7 is basic.

An aqueous solution that has a hydrogen ion concentration of 1.0 x 10-⁸ mole per liter has a pH of 8, which is basic.

What is pH?

pH of a solution refers to the degree of acidity or alkalinity of the solution.

The pH of a solution can be calculated using the following formula:

pH = - log [H+]

According to this question, an aqueous solution that has a hydrogen ion concentration of 1.0 x 10-⁸ mole per liter.

pH = - log [1 × 10-⁸]

pH = 8

Therefore, an aqueous solution that has a hydrogen ion concentration of 1.0 x 10-⁸ mole per liter has a pH of 8, which is basic.

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Give two reasons why mixing and heating sulphur powder and iron filings on a watch glass is chemical change

Answers

Answer:

When iron filings and sulphur powder are mixed and heated they undergo a chemical reaction and form ferrous sulphide (FeS). It is a new substance which has properties entirely different from Fe and S. Therefore, heating of mixture of iron and sulphur powder is a chemical change.

: Question List
Question 9 of 15
Total Points: 1 out of 15
The configuration notation shown is for the the element
?
1s^2 2s^2 2p^6 3s² 3p 4s^1
calcium
magnesium
potassium
sodium

: Question ListQuestion 9 of 15Total Points: 1 out of 15The configuration notation shown is for the the

Answers

Potassium it is the answer
: Question ListQuestion 9 of 15Total Points: 1 out of 15The configuration notation shown is for the the

what is the longest wavelength and energy (kj/mol) of light generally able to break a chemical bonds?

Answers

The longest wavelength and energy of light that is generally able to break a chemical bond depends on the strength of the bond and the nature of the bond being broken.

What is wavelength?

Wavelength is a term used in physics to describe the distance between two peaks (or troughs) in a wave. In the context of electromagnetic radiation, such as light, the wavelength is the distance between two consecutive peaks (or troughs) of the wave, and it is usually expressed in units of nanometers (nm), angstroms (Å), or micrometers (µm).

Generally, the bond energy of a chemical bond can be determined by its bond length, bond angle, and the electronegativity difference between the atoms involved in the bond.

In general, covalent bonds, such as those found in organic molecules, have bond energies in the range of 100-500 kJ/mol. To break these bonds, light with wavelengths in the UV region of the spectrum and energies in the range of 10-100 kJ/mol is typically required.

Ionic bonds, such as those found in salts, have higher bond energies, in the range of 400-1000 kJ/mol. To break these bonds, light with wavelengths in the visible or UV region of the spectrum and energies in the range of 50-200 kJ/mol is typically required.

The ability of light to break chemical bonds is related to the photon energy of the light. Photons with higher energies have the ability to break chemical bonds and cause chemical reactions.

The longest wavelength and lowest energy of light that is capable of breaking a chemical bond depends on the strength of the bond and the nature of the bond being broken.

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Predict whether or not the molar solubility of Ag2CO3 would increase, decrease, or remain unchanged upon the addition of the following substances to a solution.

Answers

The molar solubility of Ag2CO3 would decrease upon the addition of a substance that forms a common ion with Ag2CO3, such as AgNO3.

This is because the common ion effect decreases the solubility of a salt. On the other hand, the molar solubility of Ag2CO3 would increase upon the addition of a substance that does not form a common ion with Ag2CO3, such as NaCl. This is because the presence of a salt that does not form a common ion can reduce the activity coefficient of Ag2CO3 and increase its solubility.
When considering the molar solubility of Ag2CO3 in a solution, the addition of different substances can lead to varying effects:

1. Adding a common ion, such as AgNO3 or Na2CO3, will decrease the solubility of Ag2CO3 due to the common ion effect. The equilibrium will shift to the left, resulting in less Ag2CO3 dissolving in the solution.

2. Adding a substance that does not share ions with Ag2CO3, like NaCl or KNO3, will not significantly impact the solubility of Ag2CO3. The solubility will remain relatively unchanged since these substances do not interact with Ag2CO3.

3. Adding a substance that forms a complex with one of the ions in Ag2CO3, such as NH3, will increase the solubility. The complex formation will decrease the concentration of the free ions, shifting the equilibrium to the right and causing more Ag2CO3 to dissolve in the solution.

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does the rate constant for a reaction generally increase or decrease with an increase in reaction temperature? which factor is most sensitive to changes in temperature? complete the sentences to explain your answer.

Answers

The rate constant for a reaction generally increases with an increase in reaction temperature. The factor most sensitive to changes in temperature is the activation energy of the reaction.

The activation energy is the minimum energy required for a reaction to occur.

According to the Arrhenius equation, the rate constant (k) is directly proportional to the temperature (T) of the system. An increase in temperature would lead to an increase in the kinetic energy of the reactant molecules which will result in an increase in the number of effective collisions.

These effective collisions will have energy greater than the activation energy barrier, and thus they will lead to the formation of products. Hence, the rate of the reaction will increase with an increase in temperature.

Most of the reactions have a positive value of activation energy. Therefore, a slight increase in temperature can increase the rate of the reaction. However, if the temperature is increased beyond a certain limit, the rate of the reaction decreases due to the thermal denaturation of the enzyme or the inactivation of the catalysts, or the destruction of the reactants.

On increasing or decreasing the temperature the activation energy of a reaction changes drastically, either decreasing or increasing respectively.

In summary, the rate constant for a reaction is directly proportional to temperature and the activation energy is most sensitive toward temperature.

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Mike and Tom are the top swimmers of their High School Swim Team. During a competition, Mike swam 100 meters in 7.5 seconds and Tom swam 100 in 6.6 seconds. Which statement best fits the acceleration for both Mike and Tom?

Answers

Answer:

I think it is (Mike had an acceleration of 3.6 m/s², whereas, Tom had an acceleration of 4.6 m/s²)

Explanation:

Testing

How did the data from the class barometer compare to the air pressure shown in the weather report?

How did the data from the class barometer compare to the air pressure shown in the weather report?

Answers

The comparison between the class barometer data and the air pressure shown in the weather report serves as a means to evaluate the accuracy and effectiveness of the barometer's measurements.

The comparison between the data from the class barometer and the air pressure shown in the weather report revealed a correlation between the two measurements. The class barometer readings were likely taken at the same time as the weather report's air pressure measurement to ensure accurate comparison.

If the class barometer readings closely matched the air pressure indicated in the weather report, it would suggest that the barometer was functioning correctly and providing reliable measurements. This would indicate that the class barometer could be used as a reliable tool for monitoring air pressure changes.

However, if there were significant discrepancies between the class barometer readings and the air pressure reported in the weather report, it could indicate a calibration issue with the barometer or potential inaccuracies in its measurements. In such a case, it would be necessary to investigate the reasons behind the discrepancies and determine the reliability of the class barometer for future use. It helps to determine the barometer's reliability as a tool for monitoring air pressure changes in the local environment.

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HELP ASAP WILL MARK BRAINLIEST
Consider the reaction:


A + 3B → 2C


How does the reaction rate of B compare to the reaction rate of C?




A The rate of B is -½ the rate of C.



B The rate of B is -3/2 the rate of C.



C The rate of B is -⅔ the rate of C.



D The rate of B is -⅓ the rate of C.

Answers

To solve this we need to have knowledge of differential rate law which relate the rate to the concentration and time The option B is correct option.

What is differential rate law?

A differential rate law represents the rate of a reaction . According to this rate is directly proportional to changes in the concentration of reactants and inversely proportional to specific interval of time. There is another expression of rate law which is integrated rate law which is just opposite of differential rate law

The given equation is

\(A+3B\rightarrow2C\)

Rate of B= rate of C

\(\frac{1}{3}d\frac{[B]}{dt} =\frac{1}{2}d\frac{[C]}{dt}\)

\(d\frac{[B]}{dt} =\frac{3}{2}d\frac{[C]}{dt}\)

Thus option B is correct option.

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What is the mass of 2.5 moles of hydrogen fluoride gas HF

Answers

Answer:

You will get 5.0 g of hydrogen.

Explanation:

As with any stoichiometry problem, we start with the balanced equation.

Sn

l

+

2HF

SnF

2

+

H

2

Moles of H

2

=

2.5

mol Sn

×

1 mol H

2

1

mol Sn

=

2.5 mol H

2

Mass of H

2

=

2.5

mol H

2

×

2.016 g H

2

1

mol H

2

=

5.0 g H

2

How many Phosphorous (P) are in the product?

Answers

Answer:

5

Explanation:

What product? Could you provide an example?

how many valence electrons does mercury have

Answers

2 valence electrons
Other Questions
2. Factor the quadratic expression completely: 3x2 - 4x + 21a. (3x + 7)(x + 3)b. (x-7)(3x 3)c. (x - 3)(3x - 7)d. cannot be factored A cash payment was made to pay for delivery expenses, but was mistakenly charged to advertising expenses. What effect will this have on the balance of the trial balance? a. Advertising expense will be correct. b. Delivery expense will be understated. c. Cash will be correct. d. The trial balance will still balance. 6. Given functions f(x) = 2x + 5x+1 and g(x) = (x + 1), (a) The graphs of functions f and g intersect each other at three points. Find the (x, y) coordinates of those points. (b) Sketch the graphs of functions f and g on the same set of axes. You may use technology to help you. (c) Find the total area of the region(s) enclosed by the graphs of f and g. What do all equilateral triangles have in common? in what settings would pas provide most the health care for patients and consult with the supervising physician and other medical professionals as needed or required by law? How did Charlie Chaplin help his mother when she lost her voice Wanda Workout stopped at the local store to purchase a new pair of running shoes after her strenuous jog that morning. The salesman noticed Wanda looking at a pair of shoes and stated, "Those will look great with your outfit." The salesman's statement is an example of __________________. Group of answer choices a full warranty puffery an implied warranty an express warranty a limited warranty Please help with these questions!! Tysm! World-class organizations operating in competitive markets are more likely to take which one of the following approaches toward pricing? Select one: A. Determine the price that keeps the facilities fully utilized B. Determine price based on the amount management believes customers are willing to pay C. Employ a cost-based approach to pricing D. Begin with cost data as given and determine price by adding a reasonable mark-up Which freedoms are guaranteed by the First Amendment? (Pick three) right to bear arms right to vote right to a jury trial freedom of religion freedom of the press freedom of speech modern humans (homo sapiens) and archaic humans called neanderthals (h. neanderthalensis) shared a common ancestor in africa but diverged in different geographic areas. when modern humans migrated out of africa and dispersed around the world starting about 100,000 years ago, they overlapped with neanderthals in europe. this scenario is best described as Brian loves to bake blueberry muffins for his friends and family. there is a proportional relationship between the volume of flour brian uses (in cups), x, and the number of muffins he bakes, y. 10 9 8 7 9 s s 3 2 2 s 9 00 9 10 how did the south react to the reconstruction amendment and why What are the specific strategies you believe would be useful in ensuring the development of an evidence-based practice improvement plan that is inclusive of multiple members of the interdisciplinary team? Please help!!! Need done by tonight !! Which piece of evidence would you suggest that the writer add to his or her essay to best support this claim? find the slope of line that passes through the following points: (-3,5) (-3,8) Find the length of the segment indicated.Round your answer to the nearest tenth if necessary The common stock of Kansas City Power and Light has a beta of 0.80. The Treasury bill rate is 4 percent and the market risk premium is 8 percent. What is their cost of equity capital?Multiple Choice12.0 percent10.4 percent7.20 percent6.4 percent using the periodic table, determine the ion charges of the following elements if valence electrons were removed or added to reach the octet. barium