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WorksheetsStoichiometry test review
Total questions: 20
Worksheet time: 46mins
How many moles of oxygen are consumed if 8 moles H2 are used?
12.00 moles of NaClO3 will produce how many grams of O2?
180.18 g/mol
180.12 g/mol
180.24 g/mol
180.06 g/mol
Fe2O3(s) + 3H2(g) → 2Fe(s) + 3H2O(l)
How many moles of iron can be made from 6 moles H2?
How many moles of water can be produced if 8 moles H2 are used?
CaC₂(s) + H₂O(l) --> C₂H₂(g) + Ca(OH)₂(aq)
In a chemical reaction, the mass of reactants ___.
is less than the mass of products
is greater than the mass of products
has no relationship to the mass of products
is equal to the mass of products
In the reaction 2 H2 + O2 → 2 H2O what is the mole ratio of oxygen to water
1/2
2/1
3/4
4/3
I use molar mass when the problem gives me grams?
False
True
I use mole ratio (coefficients) from balanced chemical equation?
True
False
___KNO3 → ___KNO2 + ___O2
What coefficients are needed to balance the reaction?
2, 2, 1
2, 3, 2
1, 2, 2
1, 3, 1
How many grams of hydrogen are produced if 120 g of Na are available?
2H2 + O2 = 2H2O, If you react 3.0 moles of hydrogen, how many moles of oxygen are needed?
1 mole
1.5 moles
2.0 moles
2.5 moles
How many moles of hydrogen are needed to react with 2 moles of nitrogen?
The __________ in a balanced equation reveals the mole ratios of the substances involved.
subscript
coefficients
superscript
total number in each compound
