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Mole Ratio

Authored by Ethel Chng

Chemistry

10th Grade

NGSS covered

Used 30+ times

Mole Ratio
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15 questions

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1.

MULTIPLE CHOICE QUESTION

5 mins • 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

Tags

NGSS.HS-PS1-7

2.

MULTIPLE CHOICE QUESTION

5 mins • 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.

3.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

A balanced chemical equation tells us the relative amounts (unit mol) or the ratios of reactants and products.


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

4.

MULTIPLE CHOICE QUESTION

5 mins • 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

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

3Mg + Fe2O3 → 3MgO + 2Fe

What is the mole ratio of magnesium to iron?

3 : 2

2 : 3

1 : 2

3 : 1

Tags

NGSS.HS-PS1-7

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

2AgNO3 + Cu → Cu(NO3)2 + 2Ag

What is the mole ratio of silver nitrate to copper(II) nitrate?

2 : 2

1 : 1

1 : 2

2 : 1

Tags

NGSS.HS-PS1-7

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Mg + 2HCl → MgCl2 + H2

When 1 mole of HCl is used, how many moles of MgCl2 will be produced?

2 mol

1 mol

0.5 mol

4 mol

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