Counting Atoms

Counting Atoms

7th Grade

10 Qs

quiz-placeholder

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Counting Atoms

Counting Atoms

Assessment

Quiz

Chemistry

7th Grade

Practice Problem

Hard

Created by

Tammi Sue Terry

Used 1+ times

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many atoms are there in the equation H2O?

2

3

4

1

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the total number of atoms in the equation 2H2 + O2 → 2H2O?

6

8

4

2

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In the equation CH4 + 2O2 → CO2 + 2H2O, how many atoms of carbon are there?

2

4

3

1

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many atoms of oxygen are there in the equation 4Fe + 3O2 → 2Fe2O3?

6

10

8

4

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the total number of atoms in the equation 2NaCl + H2SO4 → 2HCl + Na2SO4?

12

9

7

10

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In the equation 2C6H12O6 → 4C2H5OH + 4CO2, how many atoms of hydrogen are there?

12

8

24

16

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many atoms of nitrogen are there in the equation 2NH3 + 3O2 → 2NO + 3H2O?

2

8

6

4

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