Question

NEED HELP!!! 100 POINTS

For each chemical formula down below state the number of molecules, number of elements, and number of atoms
2H₂O₂
4HCI
3CH₂
C₂H₁2O6
5CaCl₂
NaCl
6NH,
3H₂O
2Fe₂O3
8CO

Answer 1

2H₂O₂

Number of molecules: 2

Number of elements: 2 (hydrogen and oxygen)

Number of atoms: 6 (2 hydrogen and 4 oxygen)

4HCI

Number of molecules: 4

Number of elements: 2 (hydrogen and chlorine)

Number of atoms: 8 (4 hydrogen and 4 chlorine)

3CH₂

Number of molecules: 3

Number of elements: 1 (carbon and hydrogen)

Number of atoms: 9 (3 carbon and 6 hydrogen)

C₂H₁2O6

Number of molecules: 1

Number of elements: 3 (carbon, hydrogen, and oxygen)

Number of atoms: 20 (2 carbon, 12 hydrogen, and 6 oxygen)

5CaCl₂

Number of molecules: 5

Number of elements: 2 (calcium and chlorine)

Number of atoms: 30 (10 calcium and 20 chlorine)

NaCl

Number of molecules: 1

Number of elements: 2 (sodium and chlorine)

Number of atoms: 2 (1 sodium and 1 chlorine)

6NH3

Number of molecules: 6

Number of elements: 2 (nitrogen and hydrogen)

Number of atoms: 18 (6 nitrogen and 18 hydrogen)

3H₂O

Number of molecules: 3

Number of elements: 2 (hydrogen and oxygen)

Number of atoms: 9 (6 hydrogen and 3 oxygen)

2Fe₂O3

Number of molecules: 2

Number of elements: 2 (iron and oxygen)

Number of atoms: 20 (8 iron and 12 oxygen)

8CO

Number of molecules: 8

Number of elements: 2 (carbon and oxygen)

Number of atoms: 16 (8 carbon and 8 oxygen)