Gas Release from Decomposition Reactions

In the reaction: 2H2O → 2H2 + O2, how many moles of oxygen are produced from 2 moles of water?

• 1 mole of oxygen

• 3 moles of oxygen

• 2 moles of oxygen

• 0.5 moles of oxygen

Tags

NGSS.HS-PS1-7

In the reaction: 2NaCl → 2Na + Cl2, how many moles of chlorine gas are produced from 2 moles of sodium chloride?

• 0.5 moles of Cl2

• 2 moles of Cl2

• 3 moles of Cl2

• 1 mole of Cl2

Tags

NGSS.HS-PS1-7

In the reaction: 2KClO3 → 2KCl + 3O2, how many moles of oxygen are released from 2 moles of potassium chlorate?

• 2 moles of O2

• 1 mole of O2

• 3 moles of O2

• 4 moles of O2

Tags

NGSS.HS-PS1-7

In the reaction: Ca(OH)2 → CaO + H2O, how many moles of water are produced from 1 mole of calcium hydroxide?

• 1 mole

• 3 moles

• 2 moles

• 0 moles

Tags

NGSS.HS-PS1-7

In the reaction: 2Fe2O3 → 4Fe + 3O2, how many moles of oxygen are produced from 2 moles of iron(III) oxide?

• 4 moles of O2

• 1 mole of O2

• 3 moles of O2

• 2 moles of O2

Tags

NGSS.HS-PS1-7

In the reaction: 2NH4NO3 → 2N2 + 4H2O + O2, how many moles of nitrogen gas are produced from 2 moles of ammonium nitrate?

• 3 moles of nitrogen gas

• 2 moles of nitrogen gas

• 4 moles of nitrogen gas

• 1 mole of nitrogen gas

Tags

NGSS.HS-PS1-7

In the reaction: 2H2S → 2H2 + S2, how many moles of sulfur are produced from 2 moles of hydrogen sulfide?

• 2 moles of sulfur

• 0 moles of sulfur

• 3 moles of sulfur

• 1 mole of sulfur

Tags

NGSS.HS-PS1-7

In the reaction: 2C3H8 + 7O2 → 6CO2 + 8H2O, how many moles of carbon dioxide are produced from 2 moles of propane?

• 8 moles of CO2

• 4 moles of CO2

• 6 moles of CO2

• 10 moles of CO2

Tags

NGSS.HS-PS1-7

In the reaction: 2Mg(OH)2 → 2MgO + 2H2O, how many moles of magnesium oxide are produced from 2 moles of magnesium hydroxide?

• 3 moles of MgO

• 1 mole of MgO

• 4 moles of MgO

• 2 moles of MgO

Tags

NGSS.HS-PS1-7

In the reaction: 2NaHCO3 → Na2CO3 + CO2 + H2O, how many moles of carbon dioxide are produced from 2 moles of sodium bicarbonate?

• 1 mole

• 2 moles

• 0.5 moles

• 3 moles

Tags

NGSS.HS-PS1-7