Iron metal reacts with hydrochloric acid as follows: 2Fe(s) + 6HCl(aq) $\rightarrow$ 2FeCl3(aq) + 3H2(g) If 22.4 g of iron react with excess HCl, and 59.4 g of FeCl3 are collected, what is the percent yield of Al2(SO4)3?

A) 65.0% B) 109% C) 91.4% D) 73.0% E) not enough information given A) 65.0% B) 109% C) 91.4% D) 73.0% E) not enough information given C

Small amounts of oxygen gas can be produced for laboratory use by heating potassium chlorate, which causes it to decompose by the following reaction: ___KClO3(s) $\rightarrow$ ____KCl(s) + ___O2(g) (unbalanced) Balance the equation, and determine the mass of oxygen that should be formed if 15.0 g of potassium chlorate decomposes.

A) 11.7 g B) 57.5 g C) 173 g D) 5.88 g E) 86.1 g A) 11.7 g B) 57.5 g C) 173 g D) 5.88 g E) 86.1 g D

When 5.0 g CaCl2 is dissolved in water, how many moles of ions are in solution?

A) 0.135 mole B) 0.045 mole C) 5.0 moles D) 15.0 moles E) 1660 moles A) 0.135 mole B) 0.045 mole C) 5.0 moles D) 15.0 moles E) 1660 moles A

When copper reacts with sulfur at high temperature, copper(I) sulfide is formed. 2Cu(s) + S(s) $\rightarrow$ Cu2S(s) If the mass of the Cu2S formed is 1.17 g, what mass of copper should have reacted?

A) 0.934 g B) not enough information C) 0.78 g D) 2.34 g E) 0.467 g A) 0.934 g B) not enough information C) 0.78 g D) 2.34 g E) 0.467 g

When phosphorus reacts with chlorine, phosphorus trichloride is formed according to the equation: ___P4(s) + ___Cl2(g) $\rightarrow$ ___PCl3(l) (unbalanced) Balance the equation and determine how many grams of chlorine would be required to react with 10.6 g of phosphorus.

A) 6.07 g B) 24.3 g C) 36.4 g D) 18.5 g E) 74.1 g A) 6.07 g B) 24.3 g C) 36.4 g D) 18.5 g E) 74.1 g

Given that 4NH3(g) + 5O2(g) $\rightarrow$ 4NO(g) + 6H2O(g), if 4.5 moles of NH3 react with sufficient oxygen, how many moles of H2O should form?

A) 4.0 B) 4.5 C) 6.0 D) 6.8 E) 5.5 A) 4.0 B) 4.5 C) 6.0 D) 6.8 E) 5.5

When magnesium is heated in air, it reacts with oxygen to form magnesium oxide: 2Mg(s) + O2(g) $\rightarrow$ 2MgO(s) If the mass of the magnesium solid increases by 0.335 g, what mass of magnesium metal should have reacted?

A) 0.882 g B) 0.441 g C) 0.509 g D) 1.02 g E) not enough information A) 0.882 g B) 0.441 g C) 0.509 g D) 1.02 g E) not enough information

When ethanol, C2H5OH, a component in some gasoline mixtures, is burned in air, one molecule of ethanol combines with three oxygen molecules to form two CO2 molecules and three H2O molecules.Select the statement below that is incorrect in regard to this reaction.

A) The balanced equation for the reaction is C2H5OH + 3O2 $\rightarrow$ 2CO2 + 3H2O. B) If 4 ethanol molecules react, 8 CO2 molecules should form. C) If 12 H2O molecules are formed, then 9 O2 molecules must have reacted. D) If 15 ethanol molecules react, then 45 oxygen molecules must also react. E) If 12 CO2 molecules are formed, then 18 H2O molecules should also form. A) The balanced equation for the reaction is C2H5OH + 3O2 $\rightarrow$ 2CO2 + 3H2O. B) If 4 ethanol molecules react, 8 CO2 molecules should form. C) If 12 H2O molecules are formed, then 9 O2 molecules must have reacted. D) If 15 ethanol molecules react, then 45 oxygen molecules must also react. E) If 12 CO2 molecules are formed, then 18 H2O molecules should also form.

Consider the reaction between acetylene, C2H2, and oxygen in a welding torch: 2C2H2(g) + 5O2(g) $\rightarrow$4CO2(g) + 2H2O(g) Which of the following is not conserved in this reaction?

A) atoms B) moles of atoms C) moles of molecules D) mass A) atoms B) moles of atoms C) moles of molecules D) mass

When mixed, solutions of copper(II) nitrate, Cu(NO3)2, and sodium phosphate, Na3PO4, will form a precipitate of copper phosphate, Cu3(PO4)2.The balanced equation is 3Cu(NO3)2(aq) + 2Na3PO4(aq) $\rightarrow$ Cu3(PO4)2(s) + 6NaNO3(aq) Which of the following statements regarding this reaction is incorrect?

A) 8 moles of Na3PO4 will react with 12 moles of Cu(NO3)2. B) 1 mole of NaNO3 should form when 0.5 mole of Cu(NO3)2 reacts with sufficient Na3PO4. C) 12 moles of Cu3(PO4)2 should form when 36 moles of Cu(NO3)2 reacts with sufficient Na3PO4. D) If 10 moles of Na3PO4 react with sufficient Cu(NO3)2, 4 moles of Cu3(PO4)2 should form. E) If 5 moles of Cu3(PO4)2 are needed, it would require the combination of 15 moles of Cu(NO3)2 and 10 moles of Na3PO4. A) 8 moles of Na3PO4 will react with 12 moles of Cu(NO3)2. B) 1 mole of NaNO3 should form when 0.5 mole of Cu(NO3)2 reacts with sufficient Na3PO4. C) 12 moles of Cu3(PO4)2 should form when 36 moles of Cu(NO3)2 reacts with sufficient Na3PO4. D) If 10 moles of Na3PO4 react with sufficient Cu(NO3)2, 4 moles of Cu3(PO4)2 should form. E) If 5 moles of Cu3(PO4)2 are needed, it would require the combination of 15 moles of Cu(NO3)2 and 10 moles of Na3PO4.

Consider the reaction between hydrogen and oxygen gases to form water: 2H2(g) + O2(g) $\rightarrow$ 2H2O(l) Which of the following is not conserved in this reaction?

A) atoms B) moles of atoms C) moles of molecules D) mass A) atoms B) moles of atoms C) moles of molecules D) mass

When mixed, solutions of silver nitrate, AgNO3, and sodium phosphate, Na3PO4, will form a precipitate of silver phosphate, Ag3PO4.The balanced equation is 3AgNO3(aq) + Na3PO4(aq) $\rightarrow$ Ag3PO4(s) + 3NaNO3(aq) Which of the following statements regarding this reaction is incorrect?

A) 6 moles of AgNO3 will react with 2 moles of Na3PO4. B) 9 moles of AgNO3 should react to form 2 moles of Ag3PO4, given sufficient Na3PO4. C) 1.5 moles of NaNO3 should form when 0.5 mole of Na3PO4 reacts with sufficient AgNO3. D) 3 moles of Ag3PO4 should form when 3 moles of Na3PO4 react with sufficient AgNO3. E) 2 moles of Na3PO4 will react with 6 moles of AgNO3. A) 6 moles of AgNO3 will react with 2 moles of Na3PO4. B) 9 moles of AgNO3 should react to form 2 moles of Ag3PO4, given sufficient Na3PO4. C) 1.5 moles of NaNO3 should form when 0.5 mole of Na3PO4 reacts with sufficient AgNO3. D) 3 moles of Ag3PO4 should form when 3 moles of Na3PO4 react with sufficient AgNO3. E) 2 moles of Na3PO4 will react with 6 moles of AgNO3.

When one molecule of propane, C3H8, burns in a gas grill, it combines with five oxygen molecules to form three CO2 molecules and four H2O molecules.Select the statement below that is incorrect in regard to this reaction.

A) The balanced equation for the reaction is C3H8 + 5O2 $\rightarrow$3CO2 + 4H2O. B) If 5 propane molecules react, 15 CO2 molecules should form. C) If 5 propane molecules react, 25 O2 molecules must also react. D) If 15 O2 molecules react, 9 H2O molecules should form. E) If 12 CO2 molecules are formed, then 4 propane molecules must have reacted. A) The balanced equation for the reaction is C3H8 + 5O2 $\rightarrow$3CO2 + 4H2O. B) If 5 propane molecules react, 15 CO2 molecules should form. C) If 5 propane molecules react, 25 O2 molecules must also react. D) If 15 O2 molecules react, 9 H2O molecules should form. E) If 12 CO2 molecules are formed, then 4 propane molecules must have reacted.

When phosphorus reacts with chlorine, phosphorus trichloride is formed according to the following equation: ___P4(s) + ___Cl2(g)$\rightarrow$___PCl3(l) (unbalanced) Balance the equation and determine how many grams of chlorine would be required to react with 21.2 g of phosphorus.

A) 12.1 g B) 48.6 g C) 37.0 g D) 148 g E) 72.8 g A) 12.1 g B) 48.6 g C) 37.0 g D) 148 g E) 72.8 g

Exam 6: Quantities in Chemical Reactions

Iron metal reacts with hydrochloric acid as follows: 2Fe(s) + 6HCl(aq) $\rightarrow$ 2FeCl₃(aq) + 3H₂(g) If 22.4 g of iron react with excess HCl, and 59.4 g of FeCl₃ are collected, what is the percent yield of Al₂(SO₄)₃?

Free

(Multiple Choice)

4.8/5

(38)

Question 1

Correct Answer:

Verified

Small amounts of oxygen gas can be produced for laboratory use by heating potassium chlorate, which causes it to decompose by the following reaction: ___KClO₃(s) $\rightarrow$ _{__}KCl(s) + _O₂(g) (unbalanced) Balance the equation, and determine the mass of oxygen that should be formed if 15.0 g of potassium chlorate decomposes.

Free

(Multiple Choice)

4.9/5

(41)

Question 2

Correct Answer:

Verified

When 5.0 g CaCl₂ is dissolved in water, how many moles of ions are in solution?

Free

(Multiple Choice)

4.9/5

(41)

Question 3

Correct Answer:

Verified

When copper reacts with sulfur at high temperature, copper(I) sulfide is formed. 2Cu(s) + S(s) $\rightarrow$ Cu₂S(s) If the mass of the Cu₂S formed is 1.17 g, what mass of copper should have reacted?

(Multiple Choice)

4.8/5

(35)

Question 4

When phosphorus reacts with chlorine, phosphorus trichloride is formed according to the equation: _P₄(s) + _Cl₂(g) $\rightarrow$ ___PCl₃(l) (unbalanced) Balance the equation and determine how many grams of chlorine would be required to react with 10.6 g of phosphorus.

(Multiple Choice)

4.8/5

(38)

Question 5

Given that 4NH₃(g) + 5O₂(g) $\rightarrow$ 4NO(g) + 6H₂O(g), if 4.5 moles of NH₃react with sufficient oxygen, how many moles of H₂O should form?

(Multiple Choice)

4.9/5

(35)

Question 6

Which of the following equations is balanced?

(Multiple Choice)

4.8/5

(43)

Question 7

A 3.50 g sample of rice was burned in a bomb calorimeter containing 1980 g of water.The temperature of the water increased from 22.75 $\degree$ C to 28.88 $\degree$ C.How much heat, in joules, did the rice sample release when it burned? [C_water = 4.184 J/(g $\degree$ C)]

(Multiple Choice)

5.0/5

(36)

Question 8

Consider the following reaction: Cr₂O₃(s) + 3CCl₄(l) $\rightarrow$ 2CrCl₃(s) + 3COCl₂(g) green colorless purple colorless solid liquid solid gas When the green solid is mixed with the colorless liquid, the mixture starts to bubble and fume.When all action has stopped, a wet purple solid remains.Which substance is the limiting reactant?

(Multiple Choice)

4.9/5

(36)

Question 9

When magnesium is heated in air, it reacts with oxygen to form magnesium oxide: 2Mg(s) + O₂(g) $\rightarrow$ 2MgO(s) If the mass of the magnesium solid increases by 0.335 g, what mass of magnesium metal should have reacted?

(Multiple Choice)

4.8/5

(33)

Question 10

The limiting reactant in a chemical reaction is always the reactant which is present in the least amount in terms of mass.

(True/False)

4.8/5

(34)

Question 11

Consider the reaction N₂(g) + O₂(g) $\rightarrow$ 2NO(g).The molecular image represents a mixture of N₂(g) and O₂(g) just before reaction occurs.What is the limiting reactant, and how much of the excess reactant remains after the reaction is complete? The image contains 2 N₂ molecules and 4 O₂ molecules. $Consider the reaction N2(g) + O2(g) \rightarrow 2NO(g).The molecular image represents a mixture of N2(g) and O2(g) just before reaction occurs.What is the limiting reactant, and how much of the excess reactant remains after the reaction is complete? The image contains 2 N2 molecules and 4 O2 molecules.$

(Multiple Choice)

4.8/5

(27)

Question 12

When ethanol, C₂H₅OH, a component in some gasoline mixtures, is burned in air, one molecule of ethanol combines with three oxygen molecules to form two CO₂ molecules and three H₂O molecules.Select the statement below that is incorrect in regard to this reaction.

(Multiple Choice)

4.7/5

(35)

Question 13

Consider the reaction between acetylene, C₂H₂, and oxygen in a welding torch: 2C₂H₂(g)+ 5O₂(g) $\rightarrow$ 4CO₂(g) + 2H₂O(g) Which of the following is not conserved in this reaction?

(Multiple Choice)

4.8/5

(36)

Question 14

When mixed, solutions of copper(II) nitrate, Cu(NO₃)₂, and sodium phosphate, Na₃PO₄, will form a precipitate of copper phosphate, Cu₃(PO₄)₂.The balanced equation is 3Cu(NO₃)₂(aq)+ 2Na₃PO₄(aq) $\rightarrow$ Cu₃(PO₄)₂(s) + 6NaNO₃(aq) Which of the following statements regarding this reaction is incorrect?

(Multiple Choice)

4.9/5

(40)

Question 15

Consider the reaction between hydrogen and oxygen gases to form water: 2H₂(g) + O₂(g) $\rightarrow$ 2H₂O(l) Which of the following is not conserved in this reaction?

(Multiple Choice)

4.8/5

(43)

Question 16

When mixed, solutions of silver nitrate, AgNO₃, and sodium phosphate, Na₃PO₄, will form a precipitate of silver phosphate, Ag₃PO₄.The balanced equation is 3AgNO₃(aq) + Na₃PO₄(aq) $\rightarrow$ Ag₃PO₄(s) + 3NaNO₃(aq) Which of the following statements regarding this reaction is incorrect?

(Multiple Choice)

4.8/5

(35)

Question 17

When one molecule of propane, C₃H₈, burns in a gas grill, it combines with five oxygen molecules to form three CO₂ molecules and four H₂O molecules.Select the statement below that is incorrect in regard to this reaction.

(Multiple Choice)

4.8/5

(40)

Question 18

In a bomb calorimeter, the bomb itself, the water surrounding it, and the thermometer would be considered part of the "system."

(True/False)

4.9/5

(33)

Question 19

When phosphorus reacts with chlorine, phosphorus trichloride is formed according to the following equation: _P₄(s) + _Cl₂(g) $\rightarrow$ ___PCl₃(l) (unbalanced) Balance the equation and determine how many grams of chlorine would be required to react with 21.2 g of phosphorus.

(Multiple Choice)

4.9/5

(46)

Question 20

Showing 1 - 20 of 120

Iron metal reacts with hydrochloric acid as follows: 2Fe(s) + 6HCl(aq) $\rightarrow$ 2FeCl₃(aq) + 3H₂(g) If 22.4 g of iron react with excess HCl, and 59.4 g of FeCl₃ are collected, what is the percent yield of Al₂(SO₄)₃?

When 5.0 g CaCl₂ is dissolved in water, how many moles of ions are in solution?

When copper reacts with sulfur at high temperature, copper(I) sulfide is formed. 2Cu(s) + S(s) $\rightarrow$ Cu₂S(s) If the mass of the Cu₂S formed is 1.17 g, what mass of copper should have reacted?

When phosphorus reacts with chlorine, phosphorus trichloride is formed according to the equation: _P₄(s) + _Cl₂(g) $\rightarrow$ ___PCl₃(l) (unbalanced) Balance the equation and determine how many grams of chlorine would be required to react with 10.6 g of phosphorus.

Given that 4NH₃(g) + 5O₂(g) $\rightarrow$ 4NO(g) + 6H₂O(g), if 4.5 moles of NH₃react with sufficient oxygen, how many moles of H₂O should form?

Which of the following equations is balanced?

A 3.50 g sample of rice was burned in a bomb calorimeter containing 1980 g of water.The temperature of the water increased from 22.75 $\degree$ C to 28.88 $\degree$ C.How much heat, in joules, did the rice sample release when it burned? [C_water = 4.184 J/(g $\degree$ C)]

When magnesium is heated in air, it reacts with oxygen to form magnesium oxide: 2Mg(s) + O₂(g) $\rightarrow$ 2MgO(s) If the mass of the magnesium solid increases by 0.335 g, what mass of magnesium metal should have reacted?

The limiting reactant in a chemical reaction is always the reactant which is present in the least amount in terms of mass.

When ethanol, C₂H₅OH, a component in some gasoline mixtures, is burned in air, one molecule of ethanol combines with three oxygen molecules to form two CO₂ molecules and three H₂O molecules.Select the statement below that is incorrect in regard to this reaction.

Consider the reaction between acetylene, C₂H₂, and oxygen in a welding torch: 2C₂H₂(g)+ 5O₂(g) $\rightarrow$ 4CO₂(g) + 2H₂O(g) Which of the following is not conserved in this reaction?

Consider the reaction between hydrogen and oxygen gases to form water: 2H₂(g) + O₂(g) $\rightarrow$ 2H₂O(l) Which of the following is not conserved in this reaction?

When one molecule of propane, C₃H₈, burns in a gas grill, it combines with five oxygen molecules to form three CO₂ molecules and four H₂O molecules.Select the statement below that is incorrect in regard to this reaction.

In a bomb calorimeter, the bomb itself, the water surrounding it, and the thermometer would be considered part of the "system."

When phosphorus reacts with chlorine, phosphorus trichloride is formed according to the following equation: _P₄(s) + _Cl₂(g) $\rightarrow$ ___PCl₃(l) (unbalanced) Balance the equation and determine how many grams of chlorine would be required to react with 21.2 g of phosphorus.

Matter and Energy

Atoms, Ions, and the Periodic Table

Chemical Compounds

Chemical Composition

Chemical Reactions and Equations

Electron Structure of the Atom

Chemical Bonding

The Gaseous State

The Liquid and Solid States

Solutions

Reaction Rates and Chemical Equilibrium

Acids and Bases

Oxidation-Reduction Reactions

Nuclear Chemistry

Organic Chemistry

Biochemistry

Filters

Exam 6: Quantities in Chemical Reactions

Iron metal reacts with hydrochloric acid as follows: 2Fe(s) + 6HCl(aq) →\rightarrow→ 2FeCl3(aq) + 3H2(g) If 22.4 g of iron react with excess HCl, and 59.4 g of FeCl3 are collected, what is the percent yield of Al2(SO4)3?

When 5.0 g CaCl2 is dissolved in water, how many moles of ions are in solution?

When copper reacts with sulfur at high temperature, copper(I) sulfide is formed. 2Cu(s) + S(s) →\rightarrow→ Cu2S(s) If the mass of the Cu2S formed is 1.17 g, what mass of copper should have reacted?

When phosphorus reacts with chlorine, phosphorus trichloride is formed according to the equation: ___P4(s) + ___Cl2(g) →\rightarrow→ ___PCl3(l) (unbalanced) Balance the equation and determine how many grams of chlorine would be required to react with 10.6 g of phosphorus.

Given that 4NH3(g) + 5O2(g) →\rightarrow→ 4NO(g) + 6H2O(g), if 4.5 moles of NH3 react with sufficient oxygen, how many moles of H2O should form?

Which of the following equations is balanced?

A 3.50 g sample of rice was burned in a bomb calorimeter containing 1980 g of water.The temperature of the water increased from 22.75 °\degree° C to 28.88 °\degree° C.How much heat, in joules, did the rice sample release when it burned? [Cwater = 4.184 J/(g °\degree° C)]

When magnesium is heated in air, it reacts with oxygen to form magnesium oxide: 2Mg(s) + O2(g) →\rightarrow→ 2MgO(s) If the mass of the magnesium solid increases by 0.335 g, what mass of magnesium metal should have reacted?

The limiting reactant in a chemical reaction is always the reactant which is present in the least amount in terms of mass.

When ethanol, C2H5OH, a component in some gasoline mixtures, is burned in air, one molecule of ethanol combines with three oxygen molecules to form two CO2 molecules and three H2O molecules.Select the statement below that is incorrect in regard to this reaction.

Consider the reaction between acetylene, C2H2, and oxygen in a welding torch: 2C2H2(g) + 5O2(g) →\rightarrow→ 4CO2(g) + 2H2O(g) Which of the following is not conserved in this reaction?

Consider the reaction between hydrogen and oxygen gases to form water: 2H2(g) + O2(g) →\rightarrow→ 2H2O(l) Which of the following is not conserved in this reaction?

When mixed, solutions of silver nitrate, AgNO3, and sodium phosphate, Na3PO4, will form a precipitate of silver phosphate, Ag3PO4.The balanced equation is 3AgNO3(aq) + Na3PO4(aq) →\rightarrow→ Ag3PO4(s) + 3NaNO3(aq) Which of the following statements regarding this reaction is incorrect?

When one molecule of propane, C3H8, burns in a gas grill, it combines with five oxygen molecules to form three CO2 molecules and four H2O molecules.Select the statement below that is incorrect in regard to this reaction.

In a bomb calorimeter, the bomb itself, the water surrounding it, and the thermometer would be considered part of the "system."

When phosphorus reacts with chlorine, phosphorus trichloride is formed according to the following equation: ___P4(s) + ___Cl2(g) →\rightarrow→ ___PCl3(l) (unbalanced) Balance the equation and determine how many grams of chlorine would be required to react with 21.2 g of phosphorus.

Matter and Energy

Atoms, Ions, and the Periodic Table

Chemical Compounds

Chemical Composition

Chemical Reactions and Equations

Electron Structure of the Atom

Chemical Bonding

The Gaseous State

The Liquid and Solid States

Solutions

Reaction Rates and Chemical Equilibrium

Acids and Bases

Oxidation-Reduction Reactions

Nuclear Chemistry

Organic Chemistry

Biochemistry

Filters

Iron metal reacts with hydrochloric acid as follows: 2Fe(s) + 6HCl(aq) $\rightarrow$ 2FeCl₃(aq) + 3H₂(g) If 22.4 g of iron react with excess HCl, and 59.4 g of FeCl₃ are collected, what is the percent yield of Al₂(SO₄)₃?

When 5.0 g CaCl₂ is dissolved in water, how many moles of ions are in solution?

When copper reacts with sulfur at high temperature, copper(I) sulfide is formed. 2Cu(s) + S(s) $\rightarrow$ Cu₂S(s) If the mass of the Cu₂S formed is 1.17 g, what mass of copper should have reacted?

When phosphorus reacts with chlorine, phosphorus trichloride is formed according to the equation: _P₄(s) + _Cl₂(g) $\rightarrow$ ___PCl₃(l) (unbalanced) Balance the equation and determine how many grams of chlorine would be required to react with 10.6 g of phosphorus.

Given that 4NH₃(g) + 5O₂(g) $\rightarrow$ 4NO(g) + 6H₂O(g), if 4.5 moles of NH₃react with sufficient oxygen, how many moles of H₂O should form?

A 3.50 g sample of rice was burned in a bomb calorimeter containing 1980 g of water.The temperature of the water increased from 22.75 $\degree$ C to 28.88 $\degree$ C.How much heat, in joules, did the rice sample release when it burned? [C_water = 4.184 J/(g $\degree$ C)]

When magnesium is heated in air, it reacts with oxygen to form magnesium oxide: 2Mg(s) + O₂(g) $\rightarrow$ 2MgO(s) If the mass of the magnesium solid increases by 0.335 g, what mass of magnesium metal should have reacted?

When ethanol, C₂H₅OH, a component in some gasoline mixtures, is burned in air, one molecule of ethanol combines with three oxygen molecules to form two CO₂ molecules and three H₂O molecules.Select the statement below that is incorrect in regard to this reaction.

Consider the reaction between acetylene, C₂H₂, and oxygen in a welding torch: 2C₂H₂(g)+ 5O₂(g) $\rightarrow$ 4CO₂(g) + 2H₂O(g) Which of the following is not conserved in this reaction?

Consider the reaction between hydrogen and oxygen gases to form water: 2H₂(g) + O₂(g) $\rightarrow$ 2H₂O(l) Which of the following is not conserved in this reaction?

When one molecule of propane, C₃H₈, burns in a gas grill, it combines with five oxygen molecules to form three CO₂ molecules and four H₂O molecules.Select the statement below that is incorrect in regard to this reaction.

When phosphorus reacts with chlorine, phosphorus trichloride is formed according to the following equation: _P₄(s) + _Cl₂(g) $\rightarrow$ ___PCl₃(l) (unbalanced) Balance the equation and determine how many grams of chlorine would be required to react with 21.2 g of phosphorus.