Counting Atoms

Front

What is the chemical formula for sulfuric acid?

Back

H₂SO₄

Front

How many total atoms are in the compound C₆H₁₂O₆?

Back

24

Front

What does the subscript in a chemical formula represent?

Back

The number of atoms of the element in one molecule of the compound.

Front

How many oxygen atoms are in the compound Al₂(SO₄)₃?

Back

12

Front

What is the total number of atoms in H₂O?

Back

3

Front

How many different elements are present in C₆H₁₂O₆?

Back

3 (Carbon, Hydrogen, Oxygen)

Front

What is the total number of hydrogen atoms in 4H₂O?

Back

8

Front

How do you determine the number of atoms in a chemical formula?

Back

Add the subscripts of all elements in the formula.

Front

What is the significance of parentheses in chemical formulas?

Back

They indicate that the enclosed atoms are a group that can be multiplied by the subscript outside.

Front

How many atoms are in the compound NaCl?

Back

2 (1 Sodium and 1 Chlorine)