The NH₄⁺ ion forms acidic solutions, and the CH₃COO⁻ ion forms basic solutions. However, a solution of ammonium acetate is almost neutral. Do all of the ammonium salts of weak acids form neutral solutions? Explain your answer.

To confirm Newton’s Second Law using a laboratory report, you will need to conduct an experiment using a simulation and gather data. Newton’s Second Law states that force equals mass times acceleration.

Here's how you can write a laboratory report to confirm Newton’s Second Law using the simulation and gathered data. Introduction: This section should include a brief explanation of the theory behind Newton’s Second Law and what you will be testing in your experiment. It should also include your hypothesis.

Procedure: This section should explain the steps you took to conduct your experiment. In this case, it would involve using the simulation to apply different forces to objects with different masses and measuring their acceleration.

Data: This section should present the data you collected during your experiment. It can be presented in tables or graphs, and should include measurements of force, mass, and acceleration for each trial.

Analysis: This section should analyze the data you collected to determine if it supports your hypothesis and confirms Newton’s Second Law.

Conclusion: This section should summarize your findings and draw conclusions based on the data you collected. It should also discuss any errors or limitations of the experiment and suggest areas for further research.

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Answer:

4. Double replacement

Explanation:

The generic equation shows that two compounds are being swapped, which is an indication of a double substitution reaction.

Correct answer double replacement.

So the correct answer is D) Double replacement.

Answer: A. The free-moving electrons transmit heat quickly.

Explanation:

Answer:

the free-moving electrons transmit heat quickly.

Explanation:

i just took the test

The distance travelled by the particle between 0 seconds and 6 seconds is 12 m

Velocity is simply defined as the rate of change of displacement with time. Mathematically, it can be expressed as:

Velocity = displacement / time

From the question given above, the following data were obtained:

Velocity = displacement / time

The displacement of the object between 0 and 6 s is calculated as;

2 = displacement / 6

Cross multiply

Displacement = 2 × 6

Displacement = 12 m

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The weight of 5.3 x 10²⁴ molecules of C₆H₁₂O₆ is 9.5294 x 10²⁶ g

To calculate the weight of 5.3 x 10²⁴ molecules of C₆H₁₂O₆ (glucose), we need to determine the molecular weight of glucose and then multiply it by the given number of molecules.

The molecular formula of glucose (C₆H₁₂O₆ ) indicates that it consists of 6 carbon (C) atoms, 12 hydrogens (H) atoms, and 6 oxygen (O) atoms.

Using the atomic weights of carbon (12.01 g/mol), hydrogen (1.01 g/mol), and oxygen (16.00 g/mol), we can calculate the molecular weight of glucose:

To find the molecular weight of glucose, we add up the atomic weights of all the constituent atoms:

(6 x atomic weight of carbon) + (12 x atomic weight of hydrogen) + (6 x atomic weight of oxygen)

(6 x 12.01 g/mol) + (12 x 1.01 g/mol) + (6 x 16.00 g/mol) = 180.18 g/mol

The molecular weight of glucose (C₆H₁₂O₆ ) is 180.18 g/mol.

To find the weight of 5.3 x 10²⁴ molecules of glucose, we can use the following equation:

Weight = Number of molecules x Molecular weight

Weight = (5.3 x 10²⁴ molecules) x (180.18 g/mol)

Calculating this expression:

Weight = 9.5294 x 10²⁶ g

Therefore, the weight of 5.3 x 10²⁴ molecules of C₆H₁₂O₆ (glucose) is approximately 9.5294 x 10²⁶ grams.

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We must first determine the molar mass of the compound to convert it to grams, which we use to calculate the molecular weight.

It is possible to determine the molar mass of \(C_6H_1_2O_6\) (glucose), by adding the atomic masses of its constituent parts:

C: 6 atoms x atomic mass of carbon (12.01 g/mol) = 72.06 g/mol

H: 12 atoms x atomic mass of hydrogen (1.01 g/mol) = 12.12 g/mol

O: 6 atoms x atomic mass of oxygen (16.00 g/mol) = 96.00 g/mol

Total molar mass of \(C_6H_1_2O_6\) = 72.06 g/mol + 12.12 g/mol + 96.00 g/mol = 180.18 g/mol

Now we can find the weight of \(5.3 * 10^2^4\) C6H12O6 molecules using this molar mass:

(number of molecules) x (molar mass) = weight (in grams).

(5.3 x \(10^2^4\) molecules) x (180.18 g/mol) = weight

Weight = 9.00 x \(10^2^6\) grams

Therefore, the weight of 5.3 x \(10^2^4\) molecules of C6H12O6 is approximately 9.00 x\(10^2^6\) grams.

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Answer:

eight atoms

hope it helps

I hope someone will understand my life

Explanation:

The difference between addition polymerization and condensation polymerization is that in addition polymerization the polymers are formed by the addition of monomers without any by-products whereas in condensation polymerization, the polymers are formed due to the condensation of more than one different monomers resulting in the formation of small molecules such as HCl, water, etc., as by-products.

Answer:

0.736

Explanation:

*I am not sure what you mean by "carbon tetrahedral". I'm assuming you are just referring to individual carbon.*

To find the mole percent, you need to (1) convert grams benzene and grams carbon to moles (via their molar masses) and then (2) calculate the mole fraction (via the mole fraction formula).

(Step 1)

Benzene = C₆H₆

Molar Mass (C₆H₆) = 6(12.01 g/mol) + 6(1.008 g/mol)

Molar Mass (C₆H₆) = 78.108 g/mol

70 g C₆H₆          1 mole
---------------  x  ------------------  =  0.896 mole C₆H₆
                         78.108 g

Molar Mass (C) = 12.01 g/mol

30 g C           1 mole
------------  x  -----------------  =  2.50 mole C
                       12.01 g

(Step 2)

                                           moles solute
Mole Fraction  =  ----------------------------------------------
                              moles solute + moles solvent

                                              2.50 mole C
Mole Fraction  =  -------------------------------------------------  =  0.736
                             (0.896 mole C₆H₆ + 2.50 mole C)

The equation for the response between sodium hydroxide (NaOH) and magnesium nitrate (Mg(NO3)2) is: 2 NaOH (aq) + 2 Mg(NO3)2 (aq) → 2 Mg(OH)2 (s) + 3 NaNO3 (aq).

If the adjustment of interior energy (E) of a framework is positive, it implies that the response is exothermic and heat is let out of the framework. This response is exothermic in light of the fact that the last state has a lower complete energy than the underlying state because of the development of the strong magnesium hydroxide encourage and the arrival of intensity. The extent of the adjustment of inward energy relies upon how much reactants and the circumstances under which the response happens.

The response between sodium hydroxide (NaOH) and magnesium nitrate (Mg(NO3)2) is adjusted as: 2 NaOH (aq) + 2 Mg(NO3)2 (aq) → 2 Mg(OH)2 (s) + 3 NaNO3 (aq). On the off chance that the adjustment of inward energy (E) of a framework is positive, it implies the response is exothermic and heat is delivered. This implies that the last condition of the framework has lower all out energy than the underlying state. The development of strong magnesium hydroxide hasten and the arrival of intensity add to this reduction in energy. The extent of the adjustment of energy relies upon how much reactants and response conditions.

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The complete question is:

Write the equation for the chemical reaction for Sodium Hydroxide Reacts With Magnesium Nitrate To Form Magnesium Hydroxide (MW = 58.3 G/Mol) Precipitate And Sodium Nitrate. NaOH (Aq) + Mg (NO_3)_2 (Aq) Rightarrow Mg(OH)_2 (S) + NaOH_3 (Aq) Balance The Reaction. 2 NaOH (Aq) + 2 Mg(NO_3)_2 (Aq) Rightarrow 2 Mg(OH)_2 (S) + 3 NaNO_3 (Aq) If The Change In The Internal Energy, E, Of A System Is Positive.

The answer is e) 1.84 x 102 g. This means that 184.16 grams of table salt are needed to provide 72.0 grams of sodium.

Table salt, also known as sodium chloride, is a common chemical compound used in various applications. It is composed of two elements: sodium and chlorine, with sodium accounting for 39.1% of the compound's mass. In this problem, we are asked to determine how many grams of table salt are needed to provide 72.0 grams of sodium.

To solve this problem, we can use the information that table salt is 39.1% sodium by mass. This means that in every 100 grams of table salt, 39.1 grams is sodium. We can use this proportion to determine how much table salt is needed to provide 72.0 grams of sodium.

Let x be the amount of table salt (in grams) needed to provide 72.0 grams of sodium. Using the proportion, we can set up the following equation:

39.1/100 = 72.0/x

To solve for x, we can cross-multiply and simplify:

39.1x = 7200

x = 7200/39.1

x ≈ 184.16

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Answer:

When the Earth rotates on its axis, it prevents air currents from going in a straight line to the north and the south from the equator. It results in one of the effects of rotation of the Earth: the Coriolis Effect.

Answer:

Sublimation.

Explanation:

Sublimation is the conversion between the solid and the gaseous phases of matter, with no intermediate liquid stage

Answer: The reaction of formation of ions by fluorine and potassium​ is \(K^{+} + F^{-} \rightarrow KF\).

Explanation:

Atomic number of potassium is 19 and its electronic distribution is 2, 8, 8, 1. So, in order to attain stability it needs to lose 1 electron due to which it forms \(K^{+}\) ion.

Atomic number of fluorine is 9 and its electronic distribution is 2, 7. In order to attain stability it needs to gain one electron and hence forms \(F^{-}\) ion.

Therefore, when both these ions come in contact with each other then it leads to the formation of KF compound.

The reaction equation for this is as follows.

\(K^{+} + F^{-} \rightarrow KF\)

Thus, we can conclude that the reaction of formation of ions by fluorine and potassium​ is \(K^{+} + F^{-} \rightarrow KF\).

The carboxylic acid is the most responsible compound for the IR spectrum because it has a characteristic strong broad peak in the IR spectrum. So, option B is correct.

Out of the options provided, all four functional groups (alkyne, carboxylic acid, amine, and alcohol) have characteristic absorption patterns in the IR spectrum.

A) Alkynes generally have an absorption peak in the range of 3300-3500 \(cm^{-1\) due to stretching of the C≡C triple bond.

B) Carboxylic acids have a strong peak around 1700 \(cm^{-1\) due to stretching of the C=O double bond, and a broad peak around 2500-3300 \(cm^{-1\) due to O-H stretching.

C) Amines have a peak around 3300-3500 cm^-1 due to N-H stretching, and a peak around 1600-1700 \(cm^{-1\) due to N-H bending.

D) Alcohols have a broad peak around 3200-3600 \(cm^{-1\) due to O-H stretching, and a peak around 1050-1200 \(cm^{-1\) due to C-O stretching.

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Answer:

Because Argon is a inert gas

Explanation:

Inert gases don't take place in any experiments

Answer:

Below.

Explanation:

The sodium reacts strongly with the chlorine to form NaCl and the heat of reaction continues the brightness, whereas it does not react with the inert gas  argon and soon cools down.

Answer:

22.75 L CO2

Explanation:

Balance the Equation

C5H12  +  O2 ==>   CO2 + H2O        Balance the Carbons

C5H12  +  O2 ==>   5CO2 + H2O     Now balance the Hydrogens

C5H12  +  O2 ==>   5CO2 + 6H2O   Now count up the oxygens on the right.

5*O2 + 6O ==> 10 O + 6 O ===> 16 Oxygens.

You have 2 on the left. You have to multiply the oxygens by 8

C5H12  +  8O2 ==>   5CO2 + 6 H2O

The equation is now balanced.

Now find out how much oxygen is needed to burn 9.32 L of Pentane

1 Liter Pentane / 8 Liters Oxygen = 9.32 L Pentane / x     Cross multiply

x = 8 * 9.32

x = 74.56

Read this next sentence very carefully. You need 74.56 Liters of oxygen to burn all the pentane you have. There's not that much there. You only have 36.4 Liters of Oxygen. Some of the pentane won't get burned. Consequently there will be a shortage of CO2 as well.

Find out the number of Liters of Pentane that will be burned up.

1 / x =  8 / 36.4               Cross multiply

8x = 36.4                        Divide by 8

8x/8 = 36.4/8

x = 4.55 Liters of Pentane will be  used up.

Find the number of Liters of CO2

For every Liter of Pentane, 5 Liters of CO2 will be produced.

1/5 = 4.55/x                      Cross Multiply

x = 5 * 4.55

x = 22.75

Answer:

The defect of vision suffered by the person is Myopia

Explanation:

The person can't see farther objects but is able to read a book which is placed closely to the eyes, using these observations the person is suffering from MYOPIA(nearsightedness) in which observer see close objects clearly but farther objects appear blurred.

The light entering the eye isn't correctly bent, the eyeball becomes big , or the eye lens become too converging, which converges the light ray in front of the cornea

This defect can be cured by using concave lenses.

Answer:

YES!

Explanation:

Answer:

151.1J

Explanation:

Given parameters:

Mass of iron  = 6.21g

Initial temperature of iron  = 25°C

Final temperature of iron  = 79.8°C

Unknown:

Amount of heat = ?

Solution:

The amount of heat require to cause this temperature can be determined using the expression below;

    H  = m c (T₂ - T₁)

H is the amount of heat

m is the mass

c is the specific heat capacity

T is the temperature

    Specific heat capacity of iron 0.444J/g°C

Insert the parameters and solve;

     H  = 6.21 x 0.444 x (79.8 - 25)

     H   = 151.1J

The two main human-derived sources of carbon dioxide are: 1. Burning of fossil fuels, 2. Deforestation and land-use changes.

Burning of fossil fuels: The combustion of fossil fuels such as coal, oil, and natural gas for energy production, transportation, and industrial processes releases significant amounts of carbon dioxide into the atmosphere. This is a major contributor to the increase in atmospheric carbon dioxide levels and the greenhouse effect.

Deforestation and land-use changes: The conversion of forests and other natural ecosystems into agricultural lands or urban areas results in the release of carbon dioxide. Trees and vegetation act as carbon sinks, absorbing carbon dioxide during photosynthesis. When forests are cleared or destroyed, this stored carbon is released back into the atmosphere as carbon dioxide through processes like burning and decomposition.

These two sources contribute significantly to the anthropogenic increase in carbon dioxide levels, which has implications for climate change and global warming.

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The device that is most famously used to find the molecular weight of a compound is a mass spectrometer.

A mass spectrometer is an analytical instrument that is used to measure the mass-to-charge ratio of charged particles. It works by ionizing a sample of the compound, accelerating the ions, and then measuring their masses using a magnetic or an electric field. The resulting mass spectrum can be used to determine the molecular weight of the compound, as well as its elemental composition and isotopic distribution. Mass spectrometry is widely used in chemistry, biochemistry, and other fields to identify and quantify molecules, and it is considered one of the most accurate and precise methods for determining molecular weight.

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Solar energy is a viable alternative energy resource due to its high usage application.

The solar energy is considered as a viable alternative energy resource because this energy can used in the form of electricity for operating all electrical devices present in our homes.

So we can conclude that solar energy is a viable alternative energy resource due to its high usage application.

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Answer:

It has an endless supply is the answer.

Density = mass ÷ volume

             = 44.3 g ÷ 16.4 mL       [written with mass converted from kg to g]

             =  2.70 g/mL

The enthalpy of vaporization is greater than the enthalpy of fusion, because separating molecules completely from the liquid to form a gas requires more energy than separating molecules from their bound crystalline state to a liquid state.

Because it takes more energy to entirely separate molecules from a liquid to produce a gas than to move them from their bonded, crystalline state to a liquid state, the enthalpy of vaporisation is greater than the enthalpy of fusion.

What is Enthalpy?

Enthalpy is a measure of the total energy of a thermodynamic system, including both its internal energy and the product of its pressure and volume. It is represented by the symbol H and is often used in the context of chemical reactions or changes in state of matter. Enthalpy changes can be used to measure the heat absorbed or released in a reaction or process.

Segment D is longer than segment 87 because it takes more energy to vaporize a substance than to melt it. In segment D, the substance is changing from a liquid to a gas, which requires more energy (enthalpy of vaporization) than in segment 87, where the substance is changing from a solid to a liquid (enthalpy of fusion).

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Answer:

Acid/String Electrolyte

Explanation:

Litmus paper turning red means it is an acidic solution. A pH of more than 7 is Base while pH of less than 7 is an acid. Since the pH is 2, less than 7, it s is an acid. Since it has a high electrical conductivity, it must be a strong Electrolyte.

Equilibrium constant for the reaction 2C ⇔2 A is : 2500

Given

A⇔B, k = 2.0

B⇔C, k = 0.01

Required

k for 2C⇔2A

Solution

k₁ for A⇔B :(eq 1)

\(\tt k=\dfrac{[B]}{[A]}=2.0\)

k₂ for B ⇔C :(eq 2)

\(\tt k=\dfrac{[C]}{[B]}=0.01\)

k for 2C⇔2A :

\(\tt k=\dfrac{[A]^2}{[C]^2}=[\dfrac{[A]}{[C]}]^2\)

k₁ x k₂ =

\(\tt \dfrac{[C]}{[A]}=2\times 0.01 = 0.02\)

Reverse :

\(\tt \dfrac{[A]}{[C]}=50\rightarrow [\dfrac{[A]}{[C]}]^2=50^2=2500\)