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Mole to Mole Ratio

Authored by Lisa Thompson

Science

10th Grade

NGSS covered

Mole to Mole Ratio
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15 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Which of the following cannot be determined from the pictured equation?

Moles of a product produced from a given amount of reactant.

Mass of a product produced from a given amount of reactant.

Number of atoms or molecules produced from a given amount of reactant.

The volume of a liquid produced from a given amount of reactant

Tags

NGSS.HS-PS1-7

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

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

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

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.

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

In the balanced equation 2HgO → 2Hg + O2, what is the mole ratio of HgO to O2?

2 : 2

1 : 1

2 : 1

1 : 2

Tags

NGSS.HS-PS1-7

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

In the balanced equation 2Al2O3 → 4Al + 3O2, what is the mole ratio of aluminum to oxygen?

3 : 2

3 : 4

4 : 3

2 : 3

Tags

NGSS.HS-PS1-7

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is the mole ratio of magnesium to iron?

3 : 2

2 : 3

1 : 2

3 : 1

Tags

NGSS.HS-PS1-7

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

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

Tags

NGSS.MS-PS1-5

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