Counting Atoms

Front

What is the number of atoms of Hydrogen in H₂O?

Back

2

Front

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

Back

6

Front

How many Carbon (C) atoms are in 2Na₂CO₃?

Back

2

Front

What does the law of conservation of matter state?

Back

Atoms are neither created nor destroyed in chemical reactions.

Front

How many total atoms are in H₂SO₄?

Back

7

Front

What is the formula to calculate the total number of atoms in a compound?

Back

Add the subscripts of all elements in the formula.

Front

What is a subscript in a chemical formula?

Back

A number written below and to the right of a chemical symbol indicating the number of atoms of that element.

Front

What is the total number of atoms in 3H₂O?

Back

9

Front

How many Oxygen (O) atoms are in 2H₂O?

Back

2

Front

What is the significance of balancing a chemical equation?

Back

It ensures that the number of atoms of each element is conserved.