To find the percent by weight of nitrogen in the compound, we need to first calculate the amount of nitrogen in the ammonia obtained, and then use that to calculate the percentage of nitrogen in the original compound.
The molar mass of ammonia (NH3) is 17.03 g/mol, which means that 1 mole of NH3 contains 1 mole of nitrogen. So, the amount of nitrogen in the ammonia obtained is:
1.637 g NH3 × (1 mol NH3 / 17.03 g NH3) × (1 mol N / 1 mol NH3) × (14.01 g N / 1 mol N) = 0.166 g N
Now we can calculate the percent by weight of nitrogen in the compound:
% N = (mass of N / mass of compound) × 100%
mass of compound = 6.789 g (given)
mass of N = 0.166 g (calculated above)
% N = (0.166 g / 6.789 g) × 100% = 2.45%
Therefore, the percent, by weight, of nitrogen in the compound is 2.45%.
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PLEASE HELP ME
Balance the chemical equation
Answer:
8Ag2S => 16Ag + S8
Explanation:
8Ag2S => 16Ag + 1S8
Ag = 8 x 2 = 16
S = 8
How many bonds are broken in the reaction 2H₂O --> H₂ + 2O₂?
A.4 O-H bonds are broken.
B.2 H-H and 1 O=O bonds are broken.
C.2 H-H and 2 O=O bonds are broken.
D.2 O-H bonds are broken.
Explanation:
Option C. 2 H-H and 2 O=O bonds are broken is the correct answer.
In the reaction 2H₂O → H₂ + 2O₂, two water molecules are broken down into hydrogen gas and oxygen gas. Each water molecule contains two O-H bonds and one O=H bond. Therefore, in the reaction, a total of four O-H bonds and two O=H bonds are broken. However, the question specifically asks for the number of bonds broken, not the number of bonds broken of a certain type.
To determine the total number of bonds broken, we can count the number of atoms on both sides of the reaction. The reactant side has 4 hydrogen atoms and 4 oxygen atoms, while the product side has 2 hydrogen atoms and 4 oxygen atoms. This means that a total of 4 H-O bonds and 4 O-O bonds are broken in the reaction.
Since each O=O bond consists of one O-O bond, a total of 2 O-H bonds and 2 O=O bonds are broken in the reaction. Therefore, option C. 2 H-H and 2 O=O bonds are broken is the correct answer.
what happens to light waves to make it look smaller
Answer:
Waves traveling from the deep end to the shallow end can be seen to refract (i.e., bend), decrease wavelength (the wave fronts get closer together)
Explanation:
If light passes through smaller openings, often called slits, you can use Huygens's principle to show that light bends as sound does. The bending of a wave around the edges of an opening or an obstacle is called diffraction. Diffraction is a wave characteristic that occurs for all types of waves.
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Match the solution with the correct concentration.
The solution with correct concentration is -- 4 m: One kilogram of water contains 4 moles of H₂SO₄ (molality )
4M : One Liter of water contains four moles of H₂SO₄ (molarity)4 Molal : When 4 moles of the solute are dissolved in 1 kilogram of solvent—usually water—this is referred to as a solution concentration. 4 Molar: A solution concentration in which 4 moles of the solute are dissolved in 1 Liter of solvent, typically water, is referred to as this.In chemistry, what does concentration mean?In chemistry, the abundance of a component divided by the total volume of a mixture is what is meant by the term "concentration." Quantitative descriptions can be broken down into four categories: concentrations of mass, molarity, number, and volume are all measured in these units.
The term "concentration" can be used to describe any combination of chemicals, but solutes and solvents in solutions are the most common examples. There are two types of molar concentration, also known as quantity: osmotic concentration and the standard concentration.
What is molality ?The "total moles of a solute contained in a kilogram of a solvent" is how molality is measured. Molal concentration is another name for molality. It is a measurement of how much solute is in a solution.
Incomplete question :
Match the solution with the correct concentration.
4 m:
4 M:
4 Molal:
4 Molar
1. 4 moles of H₂SO₄ are placed into 1 Liter of water
2. 4 moles of H₂SO₄ are placed into 1 kg of water
3. a solution concentration where 4 moles of solute are dissolved in 1 kg of solvent
4. a solution concentration where 4 moles of solute are dissolved in 1 Liter of solvent
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by what factor is the average kinetic energy of the particles as a substance decreased if the temperature is decreased from 819 °C to 0°C
The average kinetic energy of the particles is reduced by a factor of (723/819)2 = 0.60, assuming the substance is an ideal gas.
What is kinetic energy?The energy an object possesses as a result of its motion is known as kinetic energy. It is described as the effort required to move a mass-determined body from rest to the indicated velocity. The relationship between kinetic energy and an object's mass and square of its velocity is direct.
When an object is moving, it has kinetic energy, which is computed using the formula KE = 1/2mv2, where m is the object's mass and v is its velocity. Calculating the amount of energy required to halt a moving object is just one practical use for the fundamental physics idea of kinetic energy.
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How is evaporation related to the vapor pressure of the liquid.
How much energy is required to melt a 20.lb bag of ice at 0 degrees Celsius? A pound (lb.) of ice is equivalent to 0.4536kg. The triangleH fusion of ice is +6.009kj/mol
The energy required to melt a 20 lb. bag of ice at 0 degrees Celsius is approximately 3028 kJ.
StepsTo calculate the energy required to melt a 20 lb. bag of ice at 0 degrees Celsius, we can use the following steps:
Convert the mass of ice from pounds to kilograms:
20 lb. × 0.4536 kg/lb. = 9.072 kg
Calculate the number of moles of ice using the molar mass of water:
1 mol H2O = 18.01528 g
9.072 kg = 9072 g
9072 g ÷ 18.01528 g/mol = 503.99 mol
Calculate the energy required to melt the ice using the enthalpy of fusion of water:
ΔHfusion = +6.009 kJ/mol
The energy required = ΔHfusion × moles of ice
Energy required = 6.009 kJ/mol × 503.99 mol
Energy required = 3028 kJ
Therefore, the energy required to melt a 20 lb. bag of ice at 0 degrees Celsius is approximately 3028 kJ.
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Discussion Topic!
In the SI system of units, the mole is one of seven base units. It is frequently used in chemical calculations.
However, a mole of something is just a particular quantity of it. it is not a unit of measure in the way that meters, seconds, and kilograms are. calculations performed with the number of moles of a substance could also be performed with the number of particles of a substance. Based in this information, do you think that the mole should be considered a base unit in the Si system?
Explain why or why not?
The mole makes up one of the seven base units inside the SI system for measurements. Calculations involving chemicals typically use it. A mole of something, however, is simply a specific amount of it.
What sorts and numbers of creatures exist?There are many different kinds of organisms, including producers, consumers, herbivores, carnivores, scavengers, parasite, predators, or decomposers. Producers: When an organism uses basic materials to create its own sustenance, it really is known to as a Producer.
Based on the composition of their cells, what are the two primary categories of organisms?Prokaryotic and eukaryotic cells are the two categories into which all living things can be categorised based on the arrangement of their cellular structures. Eukaryotic cell types can be found in algae, animals, fungus, plants, protozoans, and fungi. Only prokaryotic cell types are found in bacteria.
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please help me out with this really need it there's more questions as well so if anyone could please contact me and help me out would greatly appreciate
Answer:
1.) 2 Fe (s) + O2 (g) --> 2FeO (s)
2.) 4 Fe (s) + 3O2 (g) --> 2 Fe2O3
You need to make a 0.93 M solution of NaCl using a 250 mL volumetric flask. How many
grams of NaCl do you need? Round to the hundredths place (0.01)
The formula below can be used to create a [tex]0.93 M[/tex] NaCl solution in a [tex]250 mL[/tex] volumetric flask:
What cause the change in molarity of the solution?Molarity is calculated as moles of solute per litre of solution. To solve for moles of solute, rewrite the formula as follows:
Molarity times the volume of the solution in litres equals moles of solute. The volume of NaCl solution required to create the [tex]0.93 M[/tex] Solution must first be determined.
We must fill the flask with NaCl solution until the mark on the neck of the flask because we are using a [tex]250 mL[/tex] Volumetric flask. Hence, we require [tex]250 mL[/tex] Of NaCl solution.
To change mL to L:
[tex]250 mL / 1000 mL/L = 0.25 L[/tex] Is the volume of the solution in litres.
Now, we can determine how many moles of NaCl are required:
[tex]0.93[/tex] M times [tex]0.25 L[/tex] equals [tex]0.2325[/tex] Moles of NaCl.
Using its molar mass, we can finally convert moles of sodium chloride into grams of sodium chloride:
NaCl's mass is equal to its moles times its molar mass.
[tex]58.44[/tex] g/mol is the molar mass of NaCl.
NaCl mass is equal to [tex]0.2325[/tex] moles times [tex]58.44[/tex] g/mol, or [tex]13.59 g[/tex].
Therefore, [tex]13.59[/tex] grams of NaCl are required to make [tex]0.93 M[/tex] in a [tex]250 mL[/tex]Volumetric flask. The solution, rounded to the hundredths place, is [tex]13.59[/tex] g.
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A compound is found to contain 30. 45 % nitrogen and 69. 55 % oxygen by mass. What is the empirical formula for this compound?.
Answer: NO2
Explanation:
Assume 100 grams of a substance so that %=mass in grams
1.) Convert both into moles of each substance
30.45 g N * (1 mol N/ 14.01 g N) = 2.173 mol of N
69.55 g O * (1 mol O/ 16.00 g O) =4.347 mol of O
2.) divide both by the smallest number of moles, in this case 2.173, to find subscripts of each element.
2.173/ 2.173= 1
4.347/ 2.173= 2
Therefore the empirical formula is NO2
A 57. 17 g sample of ba(oh)2 is dissolved in enough water to make 1. 800 l of solution. How many ml of this solution must be diluted with water in order to make 1. 000 l of 0. 100 m ba(oh)2?.
Molarity is a measure of the concentration of a solution. It is defined as the number of moles of solute dissolved in one liter of solution. The symbol "M" denotes it, and its units are moles per liter (mol/L).
how to calculate the initial concentration of the Ba(OH)2 ?Molarity = moles of solute/volume of solution in liters
M1 = 0.3307 moles / 1.800 L
M1 = 0.1837 M
Now we can use the equation above to solve for V1:
(0.1837 M) (V1) = (0.100 M) (1.000 L)
V1 = (0.100 L) / (0.1837 M)
V1 = 0.544 L
V1 = 544 mL
Therefore, 544 mL of the original Ba(OH)2 solution must be diluted with water to make 1.000 L of 0.100 M Ba(OH)2 solution.
Is Ba(OH)2 a hazardous chemical?Barium hydroxide (Ba(OH)2) is a hazardous chemical acid that can cause harm if improperly handled. It is classified as a dangerous substance and is regulated by the Occupational Safety and Health Administration (OSHA) in the United States.
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An engineer is experimenting with two identical magnetic roller coaster cars on different sides of a center magnet that cannot move. The engineer is planning to move one car one space. Which movement will result in the largest increase in potential energy?
Moving the car furthest away from the center magnet by one space will result in the largest increase in potential energy.
What is potential energy?Potential energy is the energy that an object possesses due to its position or configuration in a system. It is stored energy that can be converted into kinetic energy or other forms of energy.
How is potential energy related to magnetic roller coasters?Magnetic roller coasters use magnets to propel roller coaster cars along a track. The magnets create a magnetic field that interacts with the magnetic field of the roller coaster car, resulting in a force that propels the car forward. The potential energy of the roller coaster car is highest when it is at the top of a hill, where it has the most gravitational potential energy. As the car moves down the hill, its potential energy is converted into kinetic energy, and the car gains speed.
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the molar absorptivity of a compound at 500 nm wavelength is 252 M^-1 cm^-1. Suppose one prepares a solution by dissolving 0.00140 moles of a solute in enough water to make 500.0 mL solution. What would be the absorbance in a 7.00 mm pathlength cell
Answer: The absorbance of a compound, with a molar absorptivity at 500 nm wavelength of 252 M⁻¹ cm⁻¹, prepared by dissolving 0.00140 moles of a solute in enough water to make a 500.0 mL solution, measured in a 3 .00 mm pathlength cell, is 0.212.
First, we will calculate the molarity of the compound, which is equal to the moles of solute divided by the liters of solution.
Then, we will convert 3.00 mm to cm using the conversion factor 1 cm = 10 mm.
Finally, we will calculate the absorbance of the compound using the Beer–Lambert equation.
where,
A: absorbance
ε: molar absorptivity
b: length of light path
C: molar concentration
help with chemistry pls!
5.7 grams of magnesium will yield 0.2347 moles of H2.
How can you distinguish H2 from Mg moles?Exactly 1 mole of Mg will result in 1 mole of H2. Thus, we need to calculate how many moles of magnesium there are in 10.0 grams: Amount of moles of magnesium equals (mass of magnesium)/(its molar mass)=(10.0g/24.31g) =0.4114mol for mol. As a result, the stoichiometry predicts that precisely 0.4114 mol of H2 will be created. Thus, we can infer that 1 mole of magnesium yields 1 mole of hydrogen gas.
H2 with MgCl2 Equals Mg + 2 HCl.
We can deduce from the equation that 1 mole of magnesium yields 1 mole of hydrogen.
Magnesium has a molar mass of 24.31 g/mol.
Divide the mass by the molar mass to see how many moles of magnesium are present in 5.7 grams:
moles of Mg = 5.7 g / 24.31 g/mol = 0.2347 mol
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Water conservation is not limited to conserving the amount of water available, but also considers the quality of the water available. The United States has come a long way in this area when compared to other countries. Which of the statements below is a water quality conservation method used in the United States?
The correct option is A) sewage treatment plants. It is is a water quality conservation method used in the United States that also considers water quality.
Sewage treatment plants are used to remove pollutants from wastewater in order to ensure that it can be safely returned to the environment. Sewage treatment plants also have the added benefit of reducing the amount of water lost to evaporation, which is another form of water conservation. This helps to reduce the amount of pollutants and contaminants in the water, which helps to maintain the quality of the water. The process involves several stages, including physical treatment to remove large particles, chemical treatment to remove metals, and biological treatment to remove organic matter.
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complete question: Water conservation is not limited to conserving the amount of water available, but also considers the quality of the water available. The United States has come a long way in this area when compared to other countries. Which of the statements below is a water quality conservation method used in the United States?
A) sewage treatment plants
B) allowing runoff of irrigation water
C) throwing out old motor oil instead of recycling it
D) painting boats in or over the water instead of in dry docks
Write the equilibrium constant expression for this reaction: 2H²(aq)+SO₁¯(aq) → H₂SO4(aq)
The reaction's equilibrium constant is 2.4 x 1047 + 500 K for the reaction 2H2(g) + O2(g) 2H2O(g).
What is the 2NO2 g N2O4 g equilibrium constant expression?Assuming a standard free energy change of 5.40 kJ/mol, the equilibrium constant for the reaction N2O4(g)2NO2(g) N 2 O 4 (g) 2 N O 2 (g) is 0.113 at 298 K.
At a certain temperature, Kc = 2.4 x 103 molL m o l L is the equilibrium constant for the reaction 2NON2+O2 2 N O N 2 + O 2.
The ideal gas law is expressed as PV=nRT, where P is pressure, V is volume, n is number of moles in the substance, R is constant at 0.08206 L atm/K mol, and T is temperature in Kelvin.
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A 15.0 mL portion of a 0.400 M solution of acetic acid is to be titrated with a standarized 0.250 M solution of KOH. What is the expected volume of the KOH solution needed to reach the phenolphthalein end point?
b.9.38 ml.The volume of KOH required to neutralize the acetic acid is:9.38ml
The equation for the reaction between acetic acid (CH3COOH) and potassium hydroxide (KOH) is:
CH3COOH + KOH → CH3COO- + K+ + H2O
The titration of acetic acid with potassium hydroxide can be used to determine the concentration of the acetic acid solution. The volume of KOH required to neutralize the acetic acid can be calculated using the equation:
Volume (KOH) =[tex]\frac{ (Molarity of acetic acid) * (Volume of acetic acid) }{(Molarity of KOH)}[/tex]
In this problem, the volume of KOH required to neutralize the acetic acid is:
Volume (KOH)
[tex]\frac{(0.400 M) * (15.0 mL) }{ (0.250 M)}\\= 9.38 mL[/tex]
Therefore,It takes 9.38 ml of KOH to neutralise 1 g of acetic acid.
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Complete question:A 15.0 mL portion of a 0.400 M solution of acetic acid is to be titrated with a standarized 0.250 M solution of KOH. What is the expected volume of the KOH solution needed to reach the phenolphthalein end point?
a.22.50 ml
b.9.38 ml
c.6.00 ml
d.3.75 ml
e.24.00 ml
What biomolcule is important for the make up of DNA and RNA?
A. Nucleic Acids
B. Proteins
C. Carbohydrates
D. Lipids
Option A Nucleic Acids are a type of DNA is correct for Biomolecules play a crucial role in the synthesis of DNA and RNA.
The genetic code of an organism—the order of nucleotides that determines the amino acid sequence of proteins—is uniquely stored by nucleic acids, specifically DNA and RNA, which are essential to life on Earth. Carbohydrates, lipids, proteins, and nucleic acids are the four main classes of biological macromolecules. Each is a vital part of the cell and carries out a variety of tasks. These molecules make up most of a cell's mass when they are all combined.
Any of the numerous substances produced by cells and living things is referred to as a biomolecule, also known as a biological molecule. Biomolecules come in a wide variety of shapes and sizes and serve a wide range of purposes. Proteins, lipids, nucleic acids, and carbohydrates are the four main categories of biomolecules.
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why is chlorine used to water treatment?
Answer:
To prevent contamination with germs
Explanation:
The main objective of chlorine addition is to disinfect the water and maintain chlorine residuals that will remain in the water as it travels through the distribution system
PLEASE HELP ASAP
USE HOMEOSTASIS TERMS + STEPS TO EXPLAIN YOUR ANSWERS (the pictures given)
GIVING OUT 20 POINTS FOR THIS!!
Scientists should be very concerned about the fact that this new toxin inhibits Na+ channels and might be harmful to organisms.
What this would mean to an organism?Because oestrogen and progestin combinations inhibit ovulation, my medication will be a steroid hormone. Additionally, they alter the mucus at the cervix to stop sperm from entering and the uterine lining to stop pregnancy from forming.
A. Depolarization is taking place as the action potential in neuron B compared to neuron A rises from a negative to a positive potential.
B. Na+ ions have the greatest impact at time 0. The electric potential becomes positive due to the inward migration of Na+ ions, causing the cell to depolarize.
C. The depolarization is brought on by the inward influx of Na+ ions through voltage-gated Na+ channels.
D. When the current reaches its peak, the K+ outward current will begin and the inward current will cease, allowing the neuron to experience repolarization.
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Determine the mass in grams of CO₂ that is produced by the complete reaction of 0.08142 moles of C₅H₁₂ (pentane) according to the following combustion reaction:
C₅H₁₂(l) + 8 O₂(g) → 5 CO₂(g) + 6 H₂O(g)
Answer: 17.91 grams of CO2 will be produced
Explanation:
The balanced chemical equation for the combustion of pentane is:
C5H12(l) + 8 O2(g) → 5 CO2(g) + 6 H2O(g)
From the equation, we can see that for every 1 mole of C5H12 that reacts, 5 moles of CO2 are produced. Therefore, to determine the mass of CO2 produced, we need to first calculate the number of moles of CO2 produced by 0.08142 moles of C5H12:
0.08142 moles C5H12 x (5 moles CO2 / 1 mole C5H12) = 0.4071 moles CO2
Now we can use the molar mass of CO2 (44.01 g/mol) to calculate the mass of CO2 produced:
0.4071 moles CO2 x 44.01 g/mol = 17.91 g CO2
Therefore, the mass of CO2 produced by the complete combustion of 0.08142 moles of pentane is 17.91 g.
Answer: 17.912 gm
Explanation: C5H12 + 8O2 ------- 5CO2 +6H2O
IF ONE MOLE OF C5H12 produces 5 moles of CO2 then 0.08142 produces x mole
then x = 5 X 0.08142
X = 0.4071
NO. OF MOLES = given mass/ molecular mass of CO2
0.4071= mass/44
Mass= 0.4071 X 44
mass = 17.912
therefore mass of CO2 produced is 17.912
whats the combining power of an element called?
When looking at a sample of vegetable oil, what biomolecule would there be a lot of?
A. Nucleic Acids
B. Proteins
C. Carbohydrates
D. Lipids
Answer: D. Lipids. Vegetable oils are composed mainly of lipids, which are fatty acids and glycerol.
Explanation:
A certain organic compound contains only c, h, and o. Combustion of 0. 1000 g of this compound produced 0. 2921 g of co2 and 0. 0951 g of h2o. What is the empirical formula of the compound?.
Answer: C33H53O3
Explanation:
1.) Convert grams of CO2 to grams of C
Convert grams of H2O to grams of H
2.) Subtract the total amount of grams ( 0.1000g) by the grams of C and grams of H to find grams of O.
3.) Convert grams of each substance to moles of each substance.
4.) Divide the moles of each substance by the smallest amount of moles to find the subscripts of each element. Since the answer for hydrogen is not close to a whole number, you must multiply each of the answers by the smallest whole number that would result the answer to be closer to a whole number.
5.) The final answer is C33H53O3
How does the mass of a moving object affect the amount of kinetic energy it has? Describe the evidence you need to collect to test your prediction, and include a reason why you think this evidence is necessary.
The kinetic energy of a moving object increases with its mass.
What is the formula for calculating kinetic energy?The formula for calculating kinetic energy is KE = 0.5 * mass * velocity^2.
How does the velocity of a moving object affect its kinetic energy?The kinetic energy of a moving object increases with the square of its velocity, meaning that as the velocity of an object increases, its kinetic energy increases at a much faster rate.
What is kinetic energy?Kinetic energy is the energy possessed by a moving object due to its motion.
What is an example of an experiment to test how mass affects kinetic energy?One example of an experiment could be rolling two balls down a ramp, one with a heavier mass and one with a lighter mass, and measuring their velocities and kinetic energies at the bottom of the ramp.
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what is the pressure of a sample of gas at a volume of 0.4250 L if it occupies 2.50L at 93.5 MM Hg.
Answer:
The pressure of the gas sample at a volume of 0.4250 L is 551.8 mmHg.
Explanation:
We can use the combined gas law to solve this problem:
P1V1/T1 = P2V2/T2
P1, V1, and T1 are the initial pressure, volume, and temperature, and P2, V2, and T2 are the final pressure, volume, and temperature.
We can rearrange this equation to solve for P2:
P2 = (P1 x V1 x T2) / (V2 x T1)
We are given:
P1 = 93.5 mmHg
V1 = 2.50 L
V2 = 0.4250 L
T1 and T2 are assumed to be constant (not given)
Substituting these values into the equation, we get:
P2 = (93.5 mmHg x 2.50 L x T2) / (0.4250 L x T1)
Simplifying, we get:
P2 = 551.8 mmHg
The pressure of the gas sample at a volume of 0.4250 L is 551.8 mmHg.
In this reaction, 28.7 g of lithium nitrate reacts 14.5 g of barium
sulfate. What will be the mass of the products?
LINO3+ BaSO4 → Products
Answer:ABOMC5LDECEVCEC
How many times would a mole of coke cans, stacked one on top of another, reach from here to Venus and back? Pls provide work
Mole of Coke cans (which is approximately 6.02 x 10²³ cans) would reach from here to Venus and back approximately (6.67 x 10¹¹ cans) / (6.02 x 10²³ cans/mol) = 1.11 x 10⁻¹² moles.
What is mole?Mole is widely used in chemistry as a way to express amounts of reactants and products of chemical reactions.
Total distance traveled = distance from Earth to Venus and back = 2 x 40,000,000,000 meters
So, Number of cans needed = Total distance traveled / height of one can
= (2 x 40,000,000,000 m) / (0.12 m)
= 6.67 x 10¹¹ cans
Therefore, a mole of Coke cans (which is approximately 6.02 x 10²³ cans) would reach from here to Venus and back approximately (6.67 x 10¹¹ cans) / (6.02 x 10²³ cans/mol) = 1.11 x 10⁻¹² moles.
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Identify the number of each atom in the reactants and products for this balanced reaction.
The number of Na atoms in the reactants is 2 and the number of Na atoms in the products is also 2.
Reactants are the substances that take part in a chemical reaction and are changed during the reaction. Products are the substances that are created as a result of the chemical reaction.In a chemical reaction, the reactants are transformed into products, and the total amount of matter remains the same.
The balanced equation for this chemical reaction is:
2NaN3(s) ⟶ 3N2(g) + 2Na(s)
In the reactants, there are 2 atoms of Na (Na) and 3 atoms of N (N3). In the products, there are 3 atoms of N (N2) and 2 atoms of Na (Na).
Therefore, the number of Na atoms in the reactants and products is 2.
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Complete question:Automobile airbags inflate due to the formation of nitrogen gas from the chemical reaction.
2NaN3(s)->3N2(g)+2Na(s).
Identify the number of each atom in the reactants and products for this balanced reaction.
