Counting Atoms Review

Front

The red numbers in a chemical formula represent ________

Back

coefficients

Front

How many Hydrogen (H) atoms are in 4 H₂O?

Back

8

Front

What is the correct formula for three hydrogen (H), one sulfur (S), and four oxygen (O)?

Back

H₃SO₄

Front

How many Potassium (K) atoms are in 8 KCl?

Back

8

Front

What is the correct formula for two hydrogen (H) and one oxygen (O)?

Back

H₂O

Front

What do subscripts in a chemical formula indicate?

Back

The number of atoms of each element in a molecule.

Front

What is the difference between coefficients and subscripts in a chemical equation?

Back

Coefficients indicate the number of molecules, while subscripts indicate the number of atoms in a molecule.

Front

How many total atoms are in the molecule C₆H₁₂O₆?

Back

24 (6 Carbon + 12 Hydrogen + 6 Oxygen)

Front

What is the formula for one nitrogen (N) and three hydrogen (H) atoms?

Back

NH₃

Front

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

Back

2