Answer:
Detail is given below.
Explanation:
Chemical equation:
4NH₃ + 3O₂ → 2N₂ + 6H₂O
This reaction shows that when ammonia react with oxygen it form water and nitrogen gas.
There are two reactants on left hand side oxygen and ammonia. Ammonia is formed when nitrogen and hydrogen react. While on right hand side there are two products nitrogen and water. Water is formed by the reaction of hydrogen and oxygen.
The given reaction also shows that it follow the law of conservation of mass.
According to the law of conservation mass, mass can neither be created nor destroyed in a chemical equation.
This law was given by French chemist Antoine Lavoisier in 1789. According to this law mass of reactant and mass of product must be equal, because masses are not created or destroyed in a chemical reaction.
An inactive tetramer of in is expected to have approximately what molecular weight?
SGLT1 is one among a homo tetramer and mediates an ordered and movement of sodium and glucose and when is with sodium is bounded before glucose on the luminal face of an tetramer and glucose is releasing before sodium when it comes with content with cytoplasmic confronts.
The productive of tetramers of subunits related to the VGC superfamily, with six transmembrane domains among the tetramer family, a P-loop, and cytoplasmic North- and C-terminus of tetramer in generally permeable to cations or to simply the permeability ratios between Ca2+ and monovalent cations which varies considerably between subtypes of its . The channel activation mechanisms are also very diverse and make these channels important sensors of local surround signals. Based on the sequence of homology, TRP channels are widely distributed among mammalian tissues which are mostly implicated in dissimilar functions and dysfunctions that are presently involved in the object of intense study of tetramology . TRP channels are for widely expressed in the nervous arrangement of the molecular weight . Autonomously from their establishing the new function every bit of an peripheral temperature sensors of situated products , growing evidently attributes to them of an important developmental in an functions.
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1. What class of drugs are being investigated in this study, and how do they get into our waterways? 2. What is a C-start and why is it important for larval fish survival? 3. What hypotheses are being tested in this investigation? 4. Briefly describe what the researchers found when they exposed larval fathead minnows to levels of antidepressants found in our waterways.
The effects of exposure were more pronounced in fish that had been raised in a less stressful environment, suggesting that environmental conditions can influence the impact of exposure to antidepressants.
1. The class of drugs being investigated in this study is antidepressants. They enter our waterways through excretion by individuals taking the medication, and disposal of unused medication into toilets or sinks that are connected to wastewater treatment plants.
2. C-start is an evasive maneuver that young fish use when they perceive a predator. This is important for larval fish survival because it helps them to avoid being eaten by predators.
3. In this investigation, researchers are testing two hypotheses. The first is that exposure to low levels of antidepressants can affect larval fathead minnows' behavior, and the second is that the effects of exposure will be more pronounced in fish that have been raised in a less stressful environment.
4. The researchers found that exposure to antidepressants at levels found in waterways can have a significant impact on the behavior of larval fathead minnows. Specifically, they found that the fish exposed to antidepressants were less likely to respond to the presence of predators, which could increase their risk of being eaten.
They also found that the effects of exposure were more pronounced in fish that had been raised in a less stressful environment, suggesting that environmental conditions can influence the impact of exposure to antidepressants.
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In the previous task, you calculated the values for the hydrate FeSO4 7H2O, shown in the chart below.
Using this information, answer the following questions. Type in the answers using one decimal place.
M.M. FeSO4
151.92 g/mol
RETRY
M.M. 7H₂O
126.14 g/mol
1%
M.M. FeSO4.7H₂O
278.06 g/mol
What is the percent by mass of water in the hydrate?
What is the percent by mass of the anhydrous salt, FeSO4, in the hydrate?
%is
To calculate the percent by mass of water in the hydrate, it is required to compare the mass of water to the total mass of the hydrate and then express it as a percentage.
Given information,
The molar mass of 7H₂O (water) is 126.14 g/mol
The molar mass of the hydrate FeSO₄·7H₂O is 278.06 g/mol
Thus,
The percent by mass of water = (mass of water/mass of hydrate) × 100
The percent by mass of water = (126.14 g/mol / 278.06 g/mol) × 100
The percent by mass of water ≈ 45.4%
The percent by mass of the anhydrous salt = 100% - percent by mass of water
The percent by mass of the anhydrous salt ≈ 100% - 45.4%
The percent by mass of the anhydrous salt ≈ 54.6%
Therefore, the percent by mass of water in the hydrate FeSO₄·7H₂O is approximately 45.4% and the percent by mass of the anhydrous salt, FeSO₄, in the hydrate FeSO₄·7H₂O is approximately 54.6%.
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How many moles of water are produced when 5 moles of hydrogen gas react with 2 moles of oxygen gas? (5 points)
2 moles of water
4 moles of water
5 moles of water
7 moles of water
Answer: 4 moles of water
Explanation:
Where is the energy found in sugar molecules?
Answer:
it is stored in the covalent bonds between the atoms
Explanation:
What happens to the temperature of copper when it melts?
Answer:
Copper encompasses a relatively low softening point, around 1075 degrees C. You'll dissolve little sums with a blowtorch. To soften sufficient for casting you'll require a heater of a few kind. This require be small more than some of tin cans.
for the reaction, determine how many moles of chlorine cl2 would be needed to react with 3 moles of phosphorus p4 to entirely use up all the phosphorus
For the given reaction, the moles of chlorine required to react with 3 moles of phosphorus to completely use up all the phosphorus.
The balanced chemical equation for the reaction is:
P4 + 6Cl2 → 4PCl3
Now, the stoichiometric ratio between P4 and Cl2 can be seen from the balanced equation as 1 mole of P4 reacts with 6 moles of Cl2.
So,
3 moles of P4 will require= 6 moles of Cl2 × (3 moles of P4 / 1 mole of P4)= 18 moles of Cl2
Therefore, 18 moles of Cl2 would be required to react with 3 moles of P4 to entirely use up all the phosphorus.
Note:
The balanced chemical equation is used to calculate the moles of reactants and products involved in a chemical reaction.
The mole ratio between the reactants and products can be determined from the balanced chemical equation.
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Cells come from other cells.
Question 2 options:
True
Never
False
Sometimes
Answer:
True
Explanation:
this is part of the cell theory
Diana and Kinsey are put in charge of choosing a mascot for their basketball team. There are fifteen players on the team, but Diana and Kinsey survey only the five players on the starting lineup about their favorite mascot.
Which best describes this error in data collection?
The data are inadequate.
The data are false.
The data were recorded incorrectly.
The data cannot be reproduced.
Answer: the data are inadequate .
Explanation:
A current of 0.2A is passed through dilute sulphuric acid for 9650s.
b) How many Coulombs of electricity are used?
1930 Coulombs of charge or electricity are used when a current of 0.2 A is passed through dilute sulphuric acid for 9650 s.
An electric current is a stream of charged particles, such as electrons or ions, moving through an electrical conductor or space. It is measured as the net rate of flow of electric charge through a surface or into a control volume.The moving particles are called charge carriers, which may be one of several types of particles, depending on the conductor. In electric circuits the charge carriers are often electrons moving through a wire.
Charge is calculated as Q=It=0.2×9650=1930 C.
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because most of the atoms at the core of the sun are _____, the nuclei and electrons are stripped from each other in the heat.
In the core of the sun, where temperatures and pressures are extremely high, the dominant atoms are hydrogen. Due to these extreme conditions, the intense heat causes the nuclei and electrons of hydrogen atoms to become stripped from each other.
This process is known as ionization and leads to the separation of positively charged atomic nuclei, called protons, and negatively charged electrons. The core of the sun is an incredibly hot and dense region where nuclear fusion reactions occur. The primary element in the sun's core is hydrogen, which consists of a single proton and a single electron. Under the extreme temperatures and pressures in the core, the kinetic energy of the particles is exceptionally high. As a result, collisions between particles are frequent and energetic.
The intense heat causes hydrogen atoms to undergo ionization. Ionization is the process in which atoms lose or gain electrons, resulting in the formation of ions. In the case of the sun's core, the heat is sufficient to strip the electrons away from the hydrogen nuclei, separating them from each other. This leads to the formation of a plasma, which is a state of matter consisting of positively charged atomic nuclei (protons) and negatively charged electrons that move independently of each other.
In summary, because hydrogen is the dominant element in the core of the sun and the temperatures are extremely high, the intense heat causes the nuclei and electrons of hydrogen atoms to become stripped from each other through ionization. This process results in the formation of a plasma, which is the state of matter in the sun's core.
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determine the value of kp for the following reaction: 4hcl(g)+o2(g)⇌2cl2(g)+2h2o(g)
The equilibrium constant at a temperature of 25°C is Kp = 28.18. This value can be expressed to three significant digits as Kp = 28.2.
What exactly is balance?A state of balance between conflicting forces or influences is known as equilibrium. It is a principle that is applied in a variety of fields, including as physics, chemistry, and economics.
The following equation can be used to determine the equilibrium constant for the specified reaction:
Kp = [Cl₂]²[H₂O]² / [HCl]⁴[O₂]
The partial pressures of the gases can be used to determine Kp on the assumption that the gas is ideal.
Kp = (PCl₂)²(PH₂O)²/ (PHCl)⁴(PO₂)
Kp is easily calculable if the partial pressures of each gas are known. Finding the equilibrium constants at a given temperature is important because no pressures are provided in this scenario.
According to the information in the thermochemical table, Kp = 28.18 is the equilibrium constant at 25°C. 3 significant figures can be used to express this amount Kp = 28.2.
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F app F fric F norm F grav Which statement best describes the forces shown in this picture? A. The force of friction and the gravitational force are balanced. B. The force of friction is less than the applied force. C. The normal force and the gravitational force are balanced. D. All four forces are acting on the student.
He is not falling nor about to fall which means he’s perfectly balanced. So this means the force in the photo and friction in this photo is in a balanced condition, balancing the boy.
How forces are balanced?In the given picture, the applied force and the force of friction are balanced. if two forces act in the direction to make the object in a balanced state.
If the forces are in a balanced state it does not change the motion of the object, and if it is in an unbalanced state, it causes to change in the state of the motion.
Therefore, the force of friction and the gravitational force are balanced is the correct option.
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The given question is incomplete, so the complete question image is attached in the image below.
what are a few examples of what energy is?
✅Energy exists in many different forms✅
Examples of these are: light energy, heat energy, mechanical energy, gravitational energy, electrical energy, sound energy, chemical energy, nuclear or atomic energy and so on. Each forms can be converted or changed into the other forms.
IamSugarBee
name one cleaning compound you commonly used at home. Why do you use it commonly?
Answer:
Chlorine
Explanation:
Because this will remove dirt and stain and it will kill microorganisms that can cause diseases.
36) What is the mass of a 4.259 g/cm substance which takes up 250.00 cm of space?
Answer:
The answer is 1064.75 gExplanation:
The mass of a substance when given the density and volume can be found by using the formula
mass = Density × volumeFrom the question
volume of substance = 250 cm³
density = 4.259 g/cm³
We have
mass = 4.259 × 250
We have the final answer as
1064.75 gHope this helps you
6. Although Inigo and the masked man are rivals, they actually have a lot
in common.
Give three examples from the swordfighting scene that show their
similarities.
The three (3) examples from the sword fighting scene that showed Inigo and the masked man's similarities are:
They can fight with both hands.They are both professional swordsmen. Inigo and the masked man discussed about their life.Who is Inigo?Inigo Montoya was one of the fictional character in the novel titled "The Princess Bride" and written by William Goldman's in 1973. Inigo hails from the village called Arabella and he was raised by his father Domingo Montoya, who was a master craftsman that makes sword.
In The Princess Bride, Inigo had a swordfight with a man in black (masked man) and they have the following things in common:
They can fight with both hands.They are both professional swordsmen. Inigo and the masked man spoke about their personal life.Read more on Inigo here: https://brainly.com/question/1130107
Type the correct answer in each box.
Answer:
1 . 26
2. 55.854
Explanation:
because atomic number is the number of proton in other words smaller number and the mass number is the number of neutrons and electrons in other words bigger number .
hope this make sense :)
Are two atoms of the same element identical??
Air that is less dense ______, while air that is more dense ______.
Air that is less dense Speeds up, while air that is more dense Slows Down.
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(c) A new car produces 132 g of carbon dioxide per kilometre travelled.
Petrol contains mainly octane, C8H₁8. This is the equation for the complete combustion
of octane.
C8H18 +12.5 O₂8CO2 +9H₂0
Calculate the mass of octane that burns to produce 132 g of carbon dioxide.
[3]
132 gm of CO₂ is generated by combustion of 342 gm of C₈H₁₈.
What is Molecular Mass?The molar mass of a chemical compound is defined as the ratio between the mass and the amount of that substance in any sample. A material's molar mass is a bulk characteristic rather than a molecular one.
The molar mass of a substance is its mass expressed in grams per mole. G/mol, or grams per mole, is the sign for molar mass. The ratio between the mass of an isotope and the mass of the isotope carbon is known as the isotopic atomic mass, or mass of a single isotope of any particular element. -12
The reaction is :
C₈H₁₈ + 12.5O₂ ----> 8CO₂ + 9H₂O
Molar mass of C₈H₁₈ is = 12*8 + 18*1 = 114 gm
Molar mass of CO₂ is = 12+ 16*2 = 44gm
44gm of CO₂ is generated by 114 gm of C₈H₁₈
1 gm of CO₂ is generated by 114/44 gm of C₈H₁₈
132 gm of CO₂ is generated by combustion of 114*132/44 = 342 gm of C₈H₁₈
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I need help with this question!!
Answer:
A. 15
Explanation:
From the equation we see that 6 water particles are used to make 1 particle of the hexose.
That means, that to make 1 mole of the hexose, we need 6 moles of water (as a mole is an unit of count of particles).
To make 2.5moles of the hexose, we need 2.5*6 moles of water, so 15 moles of water.
How many milliliters of a 0.450 M K NO 3 solution contain 0.600 moles of K NO 3 ?
The volume of 0.450 M KNO3 solution containing 0.600 moles of KNO3 is approximately equal to 1333.3 milliliters.
Concentration of the solution in molarity is defined as the number of moles of solute dissolved per liter of solution. The formula for molarity is given as follows:Molarity (M) = \frac{Moles of solute (n) }{ Volume of solution in liters (V)}.
The volume of a solution containing a given amount of solute can be calculated if the molarity is known. The formula for volume is given as follows:V =\frac{ n }{ M}
Given: Molarity (M) = 0.450 MMoles of solute (n) = 0.600 moles
We are to calculate the volume of the solution in milliliters.Volume of solution in liters (V) = \frac{n }{MV }= \frca{0.600 moles }{ 0.450 MM} = 1.3333 liters.
As we have calculated the volume of the solution in liters, we need to convert it into milliliters to get the final answer.1 liter = 1000 millilitersV in milliliters = 1.3333 liters * 1000 mL/liter = 1333.3 milliliters
Therefore, the volume of 0.450 M KNO3 solution containing 0.600 moles of KNO3 is approximately equal to 1333.3 milliliters.
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identify the correct pair? group of answer choices ch3cooh, aldehyde ch3och3, ether ch3ch2nh2, amide ch3ch2ch3, alkene
The correct pair is option (B) CH3OCH3, ether as it is an ether, a class of organic compounds containing an oxygen atom bonded to two carbon atoms.
Option (A) CH3CH2CH3 is a propane molecule with the formula C3H8. It is an alkane, not an alkene. Alkanes are hydrocarbons that only contain single covalent bonds.
Option (C) CH3CH2NH2 is ethylamine, a primary amine. Amides have a carbonyl group (C=O) connected to a nitrogen atom.
Option (D) CH3COOH is acetic acid, a carboxylic acid. Aldehydes have a carbonyl group connected to a hydrogen atom.
Option (B) CH3OCH3 is dimethyl ether, which has the formula C2H6O.
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The question is -
Identify the correct pair.
A) CH3CH2CH3, alkene
B) CH3OCH3, ether
C) CH3CH2NH2, amide
D) CH3COOH, aldehyde
If I go a distance of 5 meters in 30 seconds, what is my
speed
Answer:
0.166 m/s
Explanation:
speed = distance / time
= 5 / 30
= 0.166 m/s
Energy and Temperature Activity Worksheet
Instructions: Follow the directions below to complete part one and part two of this activity. You will submit both parts once completed.
Note: You are not performing the experiment—only designing it.
Shape
Introduction
The purpose of this assignment is to design an experiment that another student could follow and use to test whether land or water heats faster.
You will complete the following:
Part One: Experimental Design. Plan out an experiment by answering the guiding questions below.
Part Two: Design a Lab Report. Write the outline of a lab report so that another student could complete the experiment by using the materials listed below:
sand
water
heat lamps
thermometers
cups
Shape
Part One: Experimental Design
Use these guiding questions to create the experiment. Answer each question below:
What hypothesis will the experiment test?
What are the variables?
What purpose would the sand serve?
What purpose would the water serve?
What purpose would the heat lamps serve?
What purpose would the thermometers use?
How can you use these materials to test whether land or water heats faster?
How would you compare whether land or water heats faster?
Within a 24-hour period, at what three points should the temperature be taken? Why?
What would an effective conclusion need to include?
can someone help me with part one please ☆ ~('▽^人) you'll receive 100 points
Land surfaces are much darker so they absorb much more solar radiation than water. Most of the solar radiation is reflected by water which leads in reflecting the solar radiation that reaches the surface back in to the atmosphere.
How does this occur?
Due to lower specific heat of sand it heats up faster than water. On the other hand water requires one calorie of energy to raise the temperature of one gram of water by one degree Celsius. Sand takes 19 calories per gram to raise the temperature of the sand by 1 degree Celsius. While Sand requires fewer calories to raise its temperature one degree Celsius and that’s why it heats up faster than water.
Land absorbs more solar radiation the land surface retains more heat as do the vegetation for energy.
Therefore, during this experiment the sand heats up much faster than water. This happens because of the specific heat of the sand that initiates the heating rapidly under the lamp as the time passes.
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according to the following reaction, how many moles of phosphoric acid will be formed upon the complete reaction of 32.3 grams of diphosphorus pentoxide with excess water ?diphosphorus pentoxide(s) water(l) phosphoric acid(aq)
The answer is "1.2". The balanced equation for the reaction is as follows: P4O10(s) + 6H2O(l) → 4H3PO4(aq)
To determine the number of moles of phosphoric acid that will be formed upon the complete reaction of 32.3 grams of diphosphorus pentoxide with excess water, we need to use stoichiometry.
What is stoichiometry?Stoichiometry is a branch of chemistry that deals with the calculation of relative quantities of reactants and products in chemical reactions.
What is molar mass?The mass of one mole of substance is known as its molar mass.
What is Avogadro's number?The number of particles in one mole of substance is known as Avogadro's number and is equal to 6.022 x 1023.
In the given reaction:
Mass of diphosphorus pentoxide, P4O10 = 32.3 g
Number of moles of P4O10 = mass/molar mass= 32.3 g/(30.97 g/mol + 4 × 15.99 g/mol)= 0.3 mol
According to the balanced chemical equation:1 mol of P4O10 will give 4 mol of H3PO4
Therefore, 0.3 mol of P4O10 will give = 0.3 mol × 4 mol H3PO4/1 mol P4O10= 1.2 mol H3PO4
So, 1.2 moles of phosphoric acid will be formed upon the complete reaction of 32.3 grams of diphosphorus pentoxide with excess water.
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how many grams of N2 are used to produce 35 grams of H2
Approximately 162 grams of N2 are needed to produce 35 grams of H2.
To solve this problem
The balanced chemical equation for the reaction between nitrogen gas (N2) and hydrogen gas (H2) to produce ammonia (NH3) is:
N2 + 3H2 → 2NH3
From this equation, we can see that the mole ratio of N2 to H2 is 1:3. This means that for every 1 mole of N2 used, 3 moles of H2 are consumed.
To calculate how many grams of N2 are needed to produce 35 grams of H2, we first need to convert the mass of H2 to moles:
moles of H2 = mass / molar mass
molar mass of H2 = 2.016 g/mol
moles of H2 = 35 g / 2.016 g/mol ≈ 17.37 mol
Since the mole ratio of N2 to H2 is 1:3, the number of moles of N2 needed is one-third of the number of moles of H2:
moles of N2 = (1/3) × moles of H2
moles of N2 = (1/3) × 17.37 mol ≈ 5.79 mol
We can convert the moles of N2 to grams using the molar mass of N2:
molar mass of N2 = 28.02 g/mol
mass of N2 = moles × molar mass
mass of N2 = 5.79 mol × 28.02 g/mol ≈ 162 g
Therefore, approximately 162 grams of N2 are needed to produce 35 grams of H2.
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A sample of gas occupies 15.0 liters at a pressure of 2.00 atmosphere and a temperature of 300. K. If the pressure is lowered to 1.0 atmosphere and the temperature is raised to 400. K, the volume of the gas sample would be?
Answer:
THE NEW VOLUME OF THE GAS SAMPLE IS 40 L AT 1 atm AND 400 K
Explanation:
Using general gas equation which combines Boyle's and Charles' law, the volume of the gas sample at the new pressure and temperature can be obtained.
P1V1/T1 = P2V2/T2
P1 = Initial pressure = 2 atm
V1 = Initial volume = 15 L
T1 = Initial temperature = 300 K
P2 = Final pressure = 1 atm
T2 = Final temperature = 400 K
V2 = Final volume = unknown
Substituting the values into the equation, we have;
V2 = P1V1T2 / P2 T1
V2 = 2 * 15 * 400 / 1 * 300
V2 = 12 000/ 300
V2 = 40 L
The new volume after the pressure was reduced to 1 atm and the temperature increased to 400 K is 40 L.
How many moles of water (H2O) are present in a beaker containing 45. 9 g H2O? Give your answer to the correct number of significant figures. (Molar mass of water = 18. 02 g/mol) 45. 9 g H2O = mol H2O.
The moles of water in 45.9 g is 2.54 mol.
The moles are defined as the mass of substance with respect to the molar mass. The moles of sample are given by:
\(\rm Moles=\dfrac{Mass}{Molar\;mass}\)
Computation for mass of waterThe molar mass is the sum of mass of each element in the formula unit. The molar mass of water is 18.02 g/mol.
The given mass of water is 45.9 g.
Substitute the values for the moles of water:
\(\rm Moles=\dfrac{45.9 \;g}{18. 02 \;g/mol}\\\\ Moles=2.54\;mol\)
The moles of water in 45.9 g is 2.54 mol.
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