Counting atoms

Basic molecules

100

What is the total amount of atoms in this formula?

H₂O

(You can use a paper)

3

200

what is the total amount of atoms in this formula?

CH₄

(You can use a paper)

5

300

what is the total amount of atoms in this formula?

NH₃

(You can use a paper)

4

400

what is the total amount of atoms in this formula?

NaCl

(You can use a paper)

2

500

what is the total amount of atoms in this formula?

NaC₂H₃O₂

(You can use a paper)

8

Molecules with Coefficients

100

what is the total amount of atoms in this formula?

2H₂O

(You can use a paper)

6

200

What is the total amount of atoms in this formula?

3CO₂

(You can use a paper)

9

300

What is the total amount of atoms in this formula?

4NH₃

(You can use a paper)

16

400

What is the total amount of atoms in this formula?

5CH₄

(You can use a paper)

25

500

What is the total amount of atoms in this formula?

6C₂H₆

(You can use a paper)

48

Molecules with groups

100

What is the total number of atoms in this formula?

Ca(OH)₂

(You can use a paper)

5

200

What is the total amount of atoms in this formula?

Ca(NO₃)₂

(You can use a paper)

9

300

What is the total amount of atoms in this formula?

Fe(NO₃)₃

(You can use a paper)

13

400

What is the total amount of atoms in this formula?

(NH₄)₂SO₄

(You can use a paper)

15

500

What is the total amount of atoms in this formula?

(NH₄)₂Cr₂O₇

(You can use a paper)

19

Molecules with groups & coefficients

100

What is the total amount of atoms in this formula?

5Ca(OH)₂

(You can use a paper)

25

200

What is the total amount of atoms in this formula?

2Al₂(SO₄)₃

(You can use a paper)

34

300

What is the total amount of atoms in this formula?

3Al(NO₃)₃

(You can use a paper)

39

400

What is the total amount of atoms in this formula?

4Mg(OH)₂

(You can use a paper)

20

500

What is the total amount of atoms in this formula?

3(NH₄)₂Cr₂O₇

(You can use a paper)

57