Subscripts and Coefficients Practice 2022

Front

What do subscripts in a chemical formula represent?

Back

Subscripts indicate the number of atoms of each element in a molecule. For example, in H₂O, the '2' indicates there are 2 hydrogen atoms.

Front

What do coefficients in a chemical equation represent?

Back

Coefficients indicate the number of molecules or moles of a substance. For example, in 2H₂O, the '2' means there are 2 molecules of water.

Front

How many atoms of Sulfur are in H₂SO₄?

Back

There is 1 atom of Sulfur in H₂SO₄.

Front

How many total atoms are in one molecule of H₂SO₄?

Back

There are 7 total atoms in H₂SO₄ (2 H, 1 S, 4 O).

Front

What is the product of the reaction between N₂ and H₂?

Back

The product is NH₃ (ammonia).

Front

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

Back

There are 6 Sodium (Na) atoms in 6NaCl.

Front

How many atoms of Hydrogen are in H₂O?

Back

There are 2 atoms of Hydrogen in H₂O.

Front

How many Hydrogen atoms are in 4H₂O?

Back

There are 8 Hydrogen atoms in 4H₂O.

Front

What is the chemical formula for ammonia?

Back

The chemical formula for ammonia is NH₃.

Front

What does the formula NaCl represent?

Back

NaCl represents sodium chloride, commonly known as table salt, consisting of 1 Sodium (Na) atom and 1 Chlorine (Cl) atom.