Stoichiometry: Question Preview (ID: 8737)

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Mg + O2 -> MgO. How many mol of O2 are needed to produce 12 mol of magnesium oxide?
a) 12mol O2
b) 6mol O2
c) 24mol O2
d) 2mol O2

Ca + O2 -> 2CaO. How much calcium would be needed to make 15.0g of CaO?
a) 10.7g
b) 11.8g
c) 9.7g
d) Not enough information

KClO3 -> KCl + O2. How many moles of O2 are produced from 10moles of KClO3
a) 15molO2
b) 14molO2
c) 10mol O2
d) 6.66mol O2

KClO3 -> KCl + O2 How many moles of KCl are produced using 3 moles of KClO3?
a) 2mol KCl
b) 6mol KCl
c) 3 mol KCl
d) 1.5 mol KCl

KClO3 -> KCl + O2. How many moles of KClO3 are needed to produce 50 moles of O2?
a) 15 mol KClO3
b) 20mol KClO3
c) 66mol KClO3
d) 33mol KClO3

CO2 + H2O -> C6H12O6 + O2. How many grams of glucose are produced when 24 mols of CO2 reacts with H2O?
a) 721 grams
b) 4mols
c) 0.00018 grams
d) 354 grams

Zn + HCl -> ZnCl2 + H2. What is the mass of HCl needed to react with 5.00 moles of Zn
a) 5 grams HCl
b) 365 mol Hcl
c) 5mol HCl
d) 365 g HCl

NaOH + H2SO4 -> Na2SO4 + H2O. How many grams of HaOH are needed to react with 50.0 grams of H2SO4?
a) 40.8 grams NaOH
b) 0.51mol H2SO4
c) 1.02 mol NaOH
d) 20.2 grams NaOH

NaCl + H2SO4 -> Na2SO4 + HCl. How many grams of HCl are produced when 15.0 grams of sodium chloride reacts with H2SO4?
a) 1.033 g HCl
b) 8.22 g HCl
c) 9.36 g HCl
d) 13 g HCl

Cu + AgNO3 -> Cu(NO3)2 + Ag. What is the mass of Cu needed to react with 12.0 g of AgNO3?
a) 2.24g Cu
b) 1.001g Cu
c) 13.01g Cu
d) 12.99g Cu

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