Counting Atoms

Front

What is the chemical formula for Sodium Chloride?

Back

NaCl

Front

How many atoms of Sodium (Na) are in 6NaCl?

Back

6

Front

How many Nitrogen (N) atoms are in (NH₄)₂CrO₄?

Back

2

Front

In the compound C₃H₅(NO₃)₃, how many Carbon (C) atoms are there?

Back

3

Front

In the compound C₃H₅(NO₃)₃, how many Hydrogen (H) atoms are there?

Back

5

Front

In the compound C₃H₅(NO₃)₃, how many Nitrogen (N) atoms are there?

Back

3

Front

In the compound C₃H₅(NO₃)₃, how many Oxygen (O) atoms are there?

Back

9

Front

What are the reactants in the reaction: 2H₂ + O₂ → 2H₂O?

Back

2H₂ + O₂

Front

What is the total number of atoms in the compound C₃H₅(NO₃)₃?

Back

20 (3 C + 5 H + 3 N + 9 O = 20)

Front

What is the significance of subscripts in a chemical formula?

Back

Subscripts indicate the number of atoms of each element in a molecule.