Y9 - Formulae and Equations 1 - counting atoms & ionic/covalent

How many atoms are there in sodium chloride - NaCl?

• 1

• 2

• 3

• 4

How many atoms are there in sulfur dioxide - SO₂?

• 1

• 2

• 3

• 4

How many atoms are there in ethene - C₂H₄?

• 2

• 4

• 6

• 8

How many atoms are there in ammonium chloride - NH₄Cl?

• 2

• 4

• 6

• 8

How many atoms are there in ammonium sulfate - (NH₄)₂SO₄?

• 10

• 13

• 15

• 16

How many atoms are there in magnesium nitrate - Mg(NO₃)₂?

• 5

• 6

• 9

• 10

How many atoms are there in sodium carbonate - Na₂CO₃?

• 3

• 4

• 5

• 6

What is the name of the compound with this formula: NaBr?

• sodium bromine

• bromine sodiumide

• sodium bromide

• sodium bromate

What is the name of the compound with this formula: CuCO₃?

• copper carbide

• copper oxide

• oxygen carbonate

• copper carbonate

What is the name of the compound with this formula: Na₂SO₄?

• sulfur sodiumide

• sulfur sodiumate

• sodium sulfide

• sodium sulfate