AnswersPA-Chemistry CRScientific Notation and Significant Figures

Introduction to Stoichiometry Answers

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4

Consider the balanced equation below.8H2 + S8 8H2SBased on the mole ratios, what can most likely be predicted?

Question illustration
A
1 mol of hydrogen will react with 1 mol of sulfur.
B
8 mol of hydrogen will react with 1 mol of sulfur.
C
8 mol of hydrogen will react with 8 mol of sulfur.
D
16 mol of hydrogen will react with 8 mol of sulfur.
12

The following balanced equation shows the formation of ethane (C2H6).C2H2 + 2H2 C2H6How many moles of hydrogen are needed to produce 13.78 mol of ethane?

Question illustration
A
3.445 mol
B
6.890 mol
C
27.56 mol
D
55.12 mol

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