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WorksheetsMole Ratio Quizizz
Total questions: 15
Worksheet time: 21mins
What can be determined from a balanced chemical equation?
mole ratio of any two substances in the reaction
total energy released from the reaction
electron configuration of all elements in the reaction
sequence of events that lead to formation of products
Where are the numbers for a mole ratio found?
They are part of the chemical formula.
They are given in the problem.
They are found using the periodic table.
They are found as coefficients in the balanced chemical equation.
In the balanced equation 2HgO → 2Hg + O2, what is the mole ratio of HgO to O2?
2 : 2
1 : 1
2 : 1
1 : 2
In the balanced equation 2Al2O3 → 4Al + 3O2, what is the mole ratio of aluminum to oxygen?
3 : 2
3 : 4
4 : 3
2 : 3
3Mg + Fe2O3 → 3MgO + 2Fe
What is the mole ratio of magnesium to iron?
3 : 2
2 : 3
1 : 2
3 : 1
2 C2H6 + 7 O2 → 4 CO2 + 6 H2O
A problem asks how many moles of oxygen gas are needed to react completely with 6 moles of ethane (C2H6). What is the final answer for this problem?
13 mol C2H6
3 mol O2
21 mol O2
42 mol O2
2 C2H6 + 7 O2 → 4 CO2 + 6 H2O
New problem: If 16 moles of carbon dioxide are formed by this reaction, how many moles of water were also produced?
4 mol H2O
6 mol H2O
24 mol H2O
96 mol H2O
384 mol H2O
2 C2H6 + 7 O2 → 4 CO2 + 6 H2O
New problem: If 3.5 moles of oxygen gas are used up as ethane combusts completely, how many moles of carbon dioxide are produced?
0.5 mol CO2
0.57 mol CO2
2.0 mol CO2
3.0 mol CO2
3.5 mol CO2
What is the total number of moles of NH3 produced when 10 moles of H2 reacts completely with N2?
How many moles of N2 is needed to react with 6 moles of H2?
What is the total number of moles of S that reacts when 4.0 moles of Na were completely consumed?
What is the total number of moles of Na2S produced when 8.0 moles of Na were completely consumed?
What is the total number of moles of NO produced when 1 mole of O2 is completely consumed?
What is the total number of moles of H2O produced when 12 mole of NH3 is completely consumed?
What is the total number of moles of water needed to make 2.5 moles of C6H12O6?
