When 100.g Mg3N2 reacts with 75.0 g H2O, 15.0 g of NH3 is formed. What is the % yield?
Answers
Answer:
% yield = 44.5 %
Explanation:
Step 1: Data given
Mass of Mg3N2 = 100.0 grams
Mass of H2O = 75.0 grams
Mass of NH3 = 15.0 grams
Molar mass of Mg3N2 = 100.95 g/mol
Molar mass of H2O = 18.02 g/mol
Molar mass of NH3 = 17.03 g/mol
Step 2: The balanced equation
Mg3N2 + 3H2O → 3MgO + 2NH3
Step 3: Calculate moles
Moles = mass / molar mass
Moles Mg3N2 = 100 grams / 100.95 g/mol
Moles Mg3N2 = 0.99 moles
Moles H2O = 75.0 grams / 18.02 g/mol
Moles H2O = 4.16 moles
Moles NH3 = 15.0 grams / 17.03 g/mol
Moles NH3 = 0.88 moles
Step 4: Calculate the limiting reactant
For 1 mol Mg3N2 we need 3 moles H2O to produce 3 moles MgO and 2 moles NH3
Mg3N2 is the limiting reactant. It will completely be consumed (0.99 moles)
H2O is in excess. There will react 3*0.99 = 2.97 moles
There will be produced 2*0.99 = 1.98 moles of NH3
Step 5: calculate mass of NH3
Mass of NH3 = moles NH3 * molar mass NH3
Mass NH3 = 1.98 moles * 17.03 g/mol
Mass of NH3 = 33.7 grams
Step 6: Calculate the % yield
%yield = (actual yield/ theoretical yield) * 100 %
% yield = (15.0 grams / 33.7) * 100 %
% yield = 44.5 %
The percentage yield of ammonia in the given reaction has been 44.44%.
The balanced chemical reaction can be:
\(\rm Mg_3N_2\;+\;3\;H_2O\;\rightarrow\;3\;MgO\;+\;2\;NH_3\)
The moles can be given as:
Moles = \(\rm \dfrac{weight}{molecular\;weight}\)
Moles of \(\rm Mg_3N_2\) = \(\rm \dfrac{100}{100.95}\) molMoles of \(\rm Mg_3N_2\) = 0.99 mol
Moles of \(\rm H_2O\) = \(\rm \dfrac{75}{18.02}\)Moles of \(\rm H_2O\) = 4.16 mol
Moles of \(\rm NH_3\) = \(\rm \dfrac{15}{17.03}\)Moles of \(\rm NH_3\) = 0.88 mol
The limiting reactant can be:
From the balanced equation for 3 moles of water, there has been 1 mole of magnesium nitrite. So, for 4.16 moles of water, there will be 1.38 moles of \(\rm Mg_3N_2\). Since the amount of \(\rm Mg_3N_2\) has been completely consumed in the reaction, \(\rm Mg_3N_2\) has been the limiting reactant.
So, the moles of ammonia produced =
1 moles \(\rm Mg_3N_2\) = 2 moles ammonia.
0.99 moles \(\rm Mg_3N_2\) = 0.99 \(\times\) 2 moles \(\rm NH_3\)
0.99 moles \(\rm Mg_3N_2\) = 1.98 moles of ammonia.
The theoretical yield of ammonia = 1.98 moles
The actual yield of ammonia = 0.88 mol.
% Yield of Ammonia = \(\rm \dfrac{Actual\;yield}{Theoretical\;yield}\;\times\;100\)
% Yield of Ammonia = \(\rm \dfrac{0.88}{1.98}\;\times\;100\)
% Yield of Ammonia = 44.44 %
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Related Questions
Which statement best describes how Charlemagne expanded his territory in Europe?
Answers
Answer:
He became king of the Franks and then conquered other lands.Explanation:
Charlemagne became king of the Franks after the death of his father, Pepin the Short.
He inherited a sizeable portion of land that included what is now France, the Low Countries, and parts of Germany.
Charlemange launched several military campaigns throughout his long reign (he ruled for 46 years), and was highly successful in most of them. He conquered Northern and Central Italy, what is now Switzerland and Austria, and the majority of modern day Germany.
He was crowned Holy Roman Emperor in the year 800 by Pope Leo III. In exchange for this, Charlemange ceded a section of Central Italy to the Pople: the Papal States, which would be under direct control of the Roman Catholic Church until the Napoleonic Era.
PDB CODE: 1MRY SEQUENCE POSITION: 229 AMINO ACID MUTATED TO: ARG In the PDB protein, you were given the sequence position of a particular amino acid that is mutated to another amino acid. Draw the structure of the two amino acids. Describe why this position in your protein is important and outline the effects of the mutation will have on the 3-D structure and the function of your protein.
Answers
The mutated amino acid at position 229 is arginine (Arg), and its substitution can potentially disrupt the 3D structure and alter the function of the protein due to changes in side chain properties and interactions.
Structure of the Amino Acids:
The wild-type amino acid at position 229 is not specified, so the structure cannot be provided.
The mutated amino acid is arginine (Arg), which has a side chain containing a positively charged guanidinium group.
Importance of the Position:
The specific position 229 in the protein sequence may be functionally significant, such as being involved in protein-protein interactions, binding sites, catalytic activity, or structural stability.
Without detailed knowledge of the protein, its function, and its structural context, it is difficult to determine the exact importance of this specific position.
Effects of the Mutation on Structure and Function:
The substitution of an amino acid at position 229 from the original to arginine can have various effects on protein structure and function.
Arginine's larger and positively charged side chain may introduce steric clashes or alter electrostatic interactions within the protein structure.
The mutation can potentially disrupt local or global protein folding, stability, or conformational changes, affecting its overall 3D structure.
The functional consequences of the mutation depend on the specific role of the amino acid at position 229, which can include changes in protein-protein interactions, enzymatic activity, substrate binding, or signal transduction pathways.
It is crucial to analyze the protein's structural context, available experimental data, and computational modeling techniques to gain a more accurate understanding of the specific effects of the mutation on the protein's structure and function in the given context.
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The mass spectrum of a sample of a pure element is shown above. Based on the data, the peak at 26amu represents an isotope of which of the following elements?
A) Al with 13 neutrons
B) Mg with 14 neutrons
C) Fe with 26 neutrons
D) Ti with 26 neutrons
Answers
Answer:
The answer is B
The correct answer is option B: Mg with 14 neutrons
The mass spectrum shows the charge to mass ratio of atoms. I can be used to sort the isotopes of an element.
Isotopy is a phenomenon in which atoms of the same element have the same atomic number but different mass numbers.
The mass spectrum of atoms separates atoms on the basis of charge to mass ratio of the isotopes.
The isotopes of magnesium are; 24Mg atom which has 12 neutrons 25Mg which has 13 neutrons, and 26Mg which has 14 neutrons.
Hence, the peak at 26amu represents 26Mg which has 14 neutrons.
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PLEASE HELP ME ASAP
An ion has 16 protons, 17
neutrons, and 18 electrons. What
is the correct isotope notation?
A. As-2 B. CI-1
33
17
C. 335-2 D. 32S-2
16
16
Enter the answer choice letter.
Answers
Answer: d
Explanation:
The chemical equation below shows the decomposition of ammonium nitrate (NH4NO3). NH4NO3 Right arrow. N2O 2H2O A chemist who is performing this reaction starts with 160. 1 g of NH4NO3. The molar mass of NH4NO3 is 80. 03 g/mol; the molar mass of water (H2O) is 18. 01 g/mol. What mass, in grams, of H2O is produced? 9. 01 18. 01 36. 03 72. 6.
Answers
The mass of water, H₂O produced from the reaction is 72.06 g
We'll begin by calculating the mass of NH₄NO₃ that reacted and the mass of H₂O produced from the balanced equation.
NH₄NO₃ —> N₂O + 2H₂O
Molar mass of NH₄NO₃ = 80.03 g/mol
Mass of NH₄NO₃ from the balanced equation = 1 × 80.03 = 80.03 g
Molar mass of H₂O = 18.01 g/mol
Mass of H₂O from the balanced equation = 2 × 18.01 = 36.02 g
From the balanced equation above,
80.03 g of NH₄NO₃ reacted to produce 36.02 g of H₂O
Finally, we shall determine the mass of H₂O produced by the reaction of 160.1 g of NH₄NO₃.
From the balanced equation above,
80.03 g of NH₄NO₃ reacted to produce 36.02 g of H₂O.
Therefore,
160.1 g of NH₄NO₃ will react to produce = (160.1 × 36.02) / 80.03 = 72.06 g of H₂O.
Thus, the mass of water, H₂O produced from the reaction is 72.06 g
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how many grams of sulfur make up 1.55 mol of sulfur?
Answers
49.70075 grams of sulfur make up 1.55 mol of sulfur. Sulfur atoms have masses of 32.07 amu and 32.07 g per mole, respectively.
G/mol units are the starting point for calculating molar mass. We can find out how many grams make up one mole of a chemical molecule by computing its molecular weight. The weight of a particular formula is just the sum of the atomic masses of all the constituent parts.
The National Institute of Standards and Technology, or NIST, provided the atomic weights used on this website. We employ the most typical atoms. This is how isotropically weighted averages are used to determine the molar mass (average molecular weight). This differs from molecular mass, which is the weight of a singular molecule made up of distinct isotopes. For computations involving bulk stoichiometry, Typically, we are calculating molar mass, also known as normal atomic weight or average atomic masses.
1 gram of sulfur equals how many moles? 0.031186652112896 is the correct response.
It is assumed that you are changing between grams and moles of sulfur.
sulfur's chemical weight in grams
Sulfur's chemical formula is S.
The mole is the SI base measure for substance amount.
Sulfur has a molecular weight of 1 mole, or 32.065 grams.
Rounding errors could happen, so make sure to always double-check your findings.
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Which geometry (or geometries) are common for complexes with a coordination number of 4? □ tetrahedral □ trigonal bipyramidal □see-saw □ square planar
Answers
When the coordination number of a complex is 4, the common geometries that can be adopted by the complex are tetrahedral and square planar.
A tetrahedral complex has four ligands that are arranged symmetrically around the central metal atom to form a tetrahedron.
The bond angles between the ligands are 109.5 degrees, and the geometry is often seen in complexes of transition metals with ligands that have lone pairs of electrons.
On the other hand, a square planar complex has four ligands that are arranged in a plane around the central metal atom, with bond angles of 90 degrees.
This geometry is often seen in complexes of transition metals with ligands that are strong-field and can form pi bonds with the metal atom.
Trigonal bipyramidal and see-saw geometries are not common for complexes with a coordination number of 4, as they require a coordination number of 5.
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3. Which best explains the flow of energy in an internal combustion engine?
O
A. Work is converted into energy stored in chemical bonds.
B. The expansion of gases is used to do work.
C. Heat is converted into work to power the engine.
D. An increase in pressure is converted into heat and work.
Check Answer
Answers
An increase in pressure is converted into heat and work, explains the flow of energy in an internal combustion engine. Gasoline is ignited and consumed within an internal combustion engine (ICE) by the engine itself.
The engine then partially transforms the energy from combustion into work. The engine is composed of a fixed cylinder and a rotating piston. There are three main types of internal combustion engines in use today: the spark ignition engine, which is mainly used in automobiles; the diesel engine, which is used in heavy machinery and industrial systems and has an advantage over the more compact and lighter ones due to improvements in cycle efficiency.
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A 28.2 g sample of nickel is heated to 99.8 ºC and placed in a coffee cup calorimeter containing 150.0 g of water at a temperature of 23.5 ºC. After the metal cools, the final temperature of metal and water is 25.0 ºC. Calculate the heat capacity of nickel, assuming that no heat escapes to the surroundings or is transferred to the calorimeter.
Answers
The specific heat capacity of the nickel metal is 0.45.
What is the number of heat capacity of the nickel?Let us recall that the specific heat capacity is used to describe the amount of the quantity of heat that is able to cause the temperature of a unit mass of a substance to increase by 1 kelvin.
Now we know that the heat that is lost by the metal is equal to the heat that is gained by the water as such we have;
mcwdT = -mcmdT
cm = mcwdT/mdT
cm = Heat capacity of the metal
cw = Heat capacity of the water
m = mass of the metal and the water
dT = temperature change
To obtain the heat capacity;
cm = 150 * 4.2 * (25 - 23.5)/-28.2 * (25.0 - 99.8)
cm = 945/2109.4
cm = 0.45
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type ii alveolar cells secrete a substance called surfactant that prevents collapse of the alveoli during exhalation
Answers
Alveolar type II cells secrete a lipoprotein material called surfactant, whose primary function is to reduce the surface tension in the alveoli. Surfactant is a lipoprotein that consists mainly of dipalmitoyl phosphatidylcholine and some glycoprotein components.
Surfactant, also known as a surface-active agent, is a material, like a detergent, that when applied to a liquid, lowers its surface tension and increases the spreading and wetting capabilities of the liquid. Surfactants aid the dye's uniform penetration of the fabric during textile dyeing. By reducing the surface tension of the water, surfactants enable soap to combine with it. In addition to soaps and detergents, other products that use surfactants include lubricants, inks, anti-fogging agents, herbicides, adhesives, emulsifiers, and fabric softeners.
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if 50.0 mg of na2co3 are added to 150.0 ml of a solution that is 1.5×10−3 m in mg2 , will any mgco3 precipitate from the solution? ksp for mgco3 is 6.82×10−6 .
Answers
To determine if MgCO3 will precipitate from the solution, we need to compare the ion product (Q) with the solubility product (Ksp) of MgCO3. The ion product (Q) is calculated by multiplying the concentrations of the ions involved in the dissociation of MgCO3.
The balanced equation for the dissociation of MgCO3 is:
MgCO3(s) ⇌ Mg2+(aq) + CO32-(aq) Given that the concentration of Mg2+ is 1.5×10^−3 M, we can calculate the concentration of CO32- using stoichiometry. Since 1 mole of MgCO3 dissociates to give 1 mole of Mg2+ and 1 mole of CO32-, the concentration of CO32- is also 1.5×10^−3 M.
The ion product (Q) is then calculated as:
Q = [Mg2+][CO32-] = (1.5×10^−3 M)(1.5×10^−3 M) = 2.25×10^−6
Comparing Q with the solubility product (Ksp) of MgCO3 (6.82×10^−6), we find that Q < Ksp. This means that the ion product is smaller than the solubility product, indicating that no MgCO3 will precipitate from the solution. Therefore, based on the given concentrations and the solubility product of MgCO3, no MgCO3 will precipitate from the solution when 50.0 mg of Na2CO3 is added to 150.0 ml of the solution.
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.
Which of the following describes Pluto?
1. asteroid
2. moon
3. planet
4. dwarf planet
Answers
Answer:
4. dwarf planet
Explanation:
How many moles are in 2.3 g of NaHCO3? Answer should have 3 digits after the decimal and a unit.
Answers
Answer: 0.027 moles
Explanation:
which of the following statements about the kinetic-molecular theory of gases is false? 1. the average kinetic energy of a gas molecule is independent of the temperature. 2. collisions between molecules are elastic.
Answers
Kinetic molecular theory states that there is no attractive and repulsive force between the gas molecules. So option (3) is false.
According to the kinetic molecular theory the gases are composed of a large number of particles that behave like hard, spherical objects in a state of constant which is in random motion. This theory states that the energy that an object has because of its motion. The Kinetic Molecular Theory can be explained as the forces between molecules and the energy that they possess. This is explained as a theoretical model which describes the molecular composition of the gas in terms of a large number of submicroscopic particles that includes atoms and molecules. This states that the gas pressure arises due to particles colliding with each other and the walls of the container.
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The complete question is,
Which of the following statements about the kinetic-molecular theory of gases is false?
1. the average kinetic energy of a gas molecule is independent of the temperature.
2. collisions between molecules are elastic.
3. Attractive and repulsive forces are present between gas molecule.
How can you differentiate Hydrogen and carbon dioxide gases. (by flame)
Answers
The presence of hydrogen would be indicated by a pale blue flame that is nearly invisible in broad daylight, but the presence of carbon dioxide would be indicated by the flame going out.
Why do carbon dioxide and hydrogen gas flames differ from one another?A flame ignited by hydrogen gas emits a barely perceptible pale blue flame under normal lighting conditions. This is due to the flame that hydrogen gas produces mostly emitting light in the ultraviolet spectrum, which is invisible to the human eye.
On the other side, a flame is put out when carbon dioxide gas is added to it. This is because carbon dioxide is a gas that does not support burning and is not flammable.
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What is the formula of a compound containing al³⁺ and s²⁻ ions?
Answers
The formula of the compound containing Al³⁺ and S²⁻ ions is Al₂S₃.
Ionic compounds are formed when ions with opposing negative and positive charges form ionic bonds and form compounds, which are compounds made of ions.
Ionic compounds are named by stating the cation first, followed by the anion. When a neutral atom loses one or more electrons, it acquires a positive charge and is called a cation and when an atom gains one or more electrons, it becomes an anion and acquires a negative charge.
Valency of Al is 3 and that of S is 2. Exchange of valencies takes place during the formation of ionic compound and thus the formula is Al₂S₃.
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Why do you think we need to study science in school?
Answers
Answer:
I think we should study science in school becuase it will help us to undertsand the world more. Our knowledge as humans have progressed due to science research; at one time we didn't know how trees produce oxygen.
Explanation:
how can i solve this using dimensional analysis im so confused
Answers
Answer:follow these steps Identify the given quantity in the problem.
Identify the wanted quantity in the problem.
Establish the unit path from the given quantity to the wanted quantity using equivalents as conversion factors.
Set up the conversion factors to permit cancellation of unwanted units
Explanation:
other things that may helps
Set up each problem by writing down what you need to find with a question mark. Then set it equal to the information that you are given. The problem is solved by multiplying the given data and its units by the appropriate unit factors so that only the desired units are present at the end.
Answer:
I will answer the first one for you: 5.33
Explanation:
You can use dimensional analysis to do conversions in almost any field of math. For the first problem:
\(\frac{16 feet}{} |\frac{1 meter}{3 feet} = about 5.33\)
What is produced during the replacement reaction of cu(no3)2 and zn?znno3 + cu zn + cu(no3)2zncu + 2no3zn(no3)2 + cu.
Answers
During replacement reaction cu(no3)2 and zn; Zn(NO3)2 + Cu are produced.
One element in a compound is replaced by another in a chemical reaction known as a single-displacement reaction, sometimes referred to as a single replacement reaction or exchange reaction.
An exchange of ions between the two reacting chemicals to create new compounds that are distinct from the two reacting compounds is known as a double displacement reaction. The following is an example:
XB + AY = XY + AB
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What method can be used to separate benzoic acid and potassium carbonate
Answers
Answer:
To separate the components, a water wash may be attempted to remove benzoic acid, but benzoic acid is not particularly water-soluble due to its nonpolar aromatic ring, and only small amounts would be extracted into the aqueous layer
The method that can be used to separate Benzoic acid and potassium carbonate is : The application of water wash separation method
Benzoic acid is slightly soluble in cold water but becomes more soluble as the temperature of water is increased. Water wash separation method is a methodology used for the selective removal of unwanted compounds in a mixture.
Separation method based on solubility water wash methodprecipitationThe separation of benzoic acid and potassium carbonate is based on the solubility differences between Benzoic acid and potassium carbonate when dissolved in a solvent ( water ) therefore the water wash separation method is the most effective method.
Hence we can conclude that The method that can be used to separate Benzoic acid and potassium carbonate is : The application of water wash separation method.
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BRAINLIESTTTT
If a solution has pOH of 5.2 the pH of the solution is?
A. 0.17
B. 5.2
C. 6x10-6
D. 8.8
Answers
Answer:
D 8.8
Explanation:
To solve this question you must know that, using the kw equation:
Kw = 1x10⁻¹⁴ = [H⁺] [OH⁻]
-log 1x10⁻¹⁴ = -log ([H⁺] [OH⁻])
14= -log [H⁺] + -log [OH⁻]
As pH = -log[H⁺] and pOH = -log [OH⁻]
we can obtain the equation:
pH = 14 - pOH
As the pOH of the solution is 5.2:
pH = 14 - 5.2
pH = 8.8
Right option is:
D 8.8Gravity is a (n) _____________ between objects and depends on an object's size and their distance apart.
Answers
Gravity is a (n) force between objects and depends on an object's size and their distance apart.
Gravitational force is the attractive that exist between all object with mass an object with mass attracts another object with mass the magnitude of the force is directly proportional to the masses of the two objects and inversely proportional to the square of the distance between the two objects
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Based on its location on the periodic table, how many electrons does oxygen have in its
outer energy level? (2 points)
O 3
O4
O 5
O 6
Answers
Answer:
O 6
Explanation:
Oxygen has six valence electrons, two in the 2s subshell and four in the 2p subshell.
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2KCIO3= 2KCI+3O2
Using the equation above, if 25.6 g of KClare produced, then how many grams of
KCIO3 were consumed? (Type the numerical answer only, no words or label. Use
correct significant figures)
Answers
Answer:
The key to chemistry is to change everything to moles. Then when you have the answer in moles change the answer back to grams, liters, or whatever you want.
change 25 grams of potassium chlorate to moles.
calculate the gram molecular mass of potassium chlorate.
Chlorate is Cl with 3 oxygens. ate = saturated. Chlorine has seven valance electrons when it is saturated six of these electrons are used by oxygen ( 2 electrons per oxygen) leaving only 1 electron.
1 K x 39 grams/mole
+1 Cl x 35.4 grams/ mole
+3 O x 16 grams/ mole
= 122.4 grams / mole Potassium Chlorate
25
122.4
= moles.
2.05 moles of Potassium Chlorate.
There is a 1:1 mole ratio. 1 mole of Potassium Chlorate will produce 1 mole of Potassium Chloride.
2.05 moles of Potassium Chlorate will produce 2.05 moles of Potassium Chloride.
Find the gram molecular mass of Potassium Chloride.
1 K x 39 = 39
+1 Cl x 35.4 = 35.4
= 74.4 grams / mole.
2.05 moles x 74.4 grams/ mole = 15.2 grams
Explanation:
hope this helped :)
he enzyme glutamate dehydrogenase (that we saw earlier to be involved in amino acid degradation) also provides the means by which ammonium ions are first incorporated into amino acids during their biosynthesis. The carbon skeleton that accepts the ammonia to form glutamate is
Answers
Here, the enzyme glutamate dehydrogenase and its role in incorporating ammonium ions into amino acids during biosynthesis: The carbon skeleton that accepts the ammonia to form glutamate is alpha-ketoglutarate.
Here is a step-by-step explanation:
Step:1. Glutamate dehydrogenase catalyzes the reaction.
Step:2. Ammonium ions (NH4+) are incorporated into amino acids.
Step:3. The carbon skeleton, alpha-ketoglutarate, accepts the ammonia (NH3).
Step:4. The product of this reaction is glutamate, an amino acid. The carbon skeleton that accepts the ammonia to form glutamate is alpha-ketoglutarate (α-ketoglutarate), which is an intermediate in the Krebs cycle and a key molecule in cellular metabolism. Glutamate dehydrogenase catalyzes the reaction that combines α-ketoglutarate with ammonia to form glutamate, which is then used as a precursor for the synthesis of other amino acids. This process is called transamination, and it is a crucial step in the biosynthesis of amino acids.
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why put a plastic bottle on your tire when traveling alone
Answers
Answer:
here's a trick that crooks are using to steal from you and at first glance, it seems so innocent.
If you see a plastic bottle stuck between the tire and wheel well of your car, consider it a telltale sign that someone may attempt to rob you.
BUT if you put the plastic bottle they're for yourself, then the crook might thing somebody already robbed you.
Explanation:
Answer:
They put the bottle on the front passenger side wheel, so the driver won’t spot it when entering.
Explanation:
the empty plastic bottle will make a crackle sound. The first thing that most drivers do is stop the car and jump out to see what they ran over.
If your pipet was incorrectly calibrated so that it transferred 5% too much solution, would the density you calculated for the liquid tend to be larger or smaller than the correct value?
Answers
The density you calculated for the liquid would tend to be larger than the correct value if your pipet was incorrectly calibrated so that it transferred 5% too much solution.
This is because density is a measure of mass per unit of volume, so if you have more solution than expected, the total mass of the solution will increase, causing the density to increase.
To explain further, when you transfer a liquid using a pipet, you must ensure that the pipet is calibrated correctly. If it is not, then too much or too little of the solution will be transferred.
In this case, if the pipet is calibrated so that it transfers 5% too much solution, the total mass of the solution will increase, causing the density of the solution to be larger than the correct value.
This is because density is a measure of mass per unit of volume, and if the mass of the solution is larger than expected, then the density will also be larger.
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As a result of this process, the proportions of oxygen and carbon dioxide in
air breathed in and air breathed out change.
Which one of the statements is true? Tick the correct box. [1]
- Air breathed out has less carbon dioxide and more oxygen than air breathed in.
- Air breathed out has less carbon dioxide and less oxygen than air breathed in.
- Air breathed out has more carbon dioxide and less oxygen than air breathed in.
- Air breathed out has more carbon dioxide and more oxygen than air breathed in.
Answers
Answer:
the third one
Explanation:
When you breathe in, you inhale oxygen and exhale carbon dioxide
Make the steps. ASAP please if you can explin it even better:)
Answers
The very first step is the elimination of the salt that is NaCl that is when the copper chloride is reacting with the sodium carbonate then the Na gives its 1 electron to the chloride ion and together makes a compound.
The balanced chemical equation for the reaction between sodium carbonate (Na2CO3) and copper(II) chloride (CuCl2) is as follows:
CuCO3 + 2NaCl = CuCl2 + Na2CO3
In this equation, one CuCl2 molecule interacts with one Na2CO3 molecule to form one CuCO3 molecule and two NaCl molecules.
We must ensure that each element has the same amount of atoms on both sides of the equation in order to achieve equilibrium. Here's how to strike a balance:
CuCO3 + 2NaCl = CuCl2 + Na2CO3
Now the equation balances. Each element has an equal amount of atoms on both sides of the equation.
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why can't a beaker be used to measuring the volume of a liquid
Answers
Answer:
It doesn't have measure marks on it.