Math quiz  practice

Math quiz practice

11th Grade

18 Qs

quiz-placeholder

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Math quiz  practice

Math quiz practice

Assessment

Quiz

Chemistry

11th Grade

Practice Problem

Medium

Created by

Loretta Salerno

Used 3+ times

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18 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the total number of moles of hydrogen atoms contained in 1 mole of 2(NH4)2C2O4?

8

16

2

4

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the total number of atoms present in 3Mg2(NO3)2?

5

10

8

30

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The ratio of Iron to sulfur is Al2O3, is

2 grams of Aluminum to 3 grams of Oxygen

3 grams of Aluminum to 2 grams of Oxygen

2 moles of Aluminum to

3 moles of Oxygen

3 moles of Aluminum to 2 moles of Oxygen

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the total number of oxygen atoms in the formula MgSO4 • 7 H2O?

11

7

5

4

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The formula mass of a compound is the

products of the atomic numbers of its atoms

sum of the atomic numbers of its atoms

sum of the atomic masses of its atoms

product of the atomic masses of its atoms

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The molar mass of Ba(OH)2 is

154.3 g

171.3 g

155.3 g

308.6 g

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The total number of moles represented by 2.0 grams of CaCO3 is

0.02

0.1

2

1

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