1) What colour flame do lithium ions burn with? a) Crimson b) Yellow c) Lilac d) Orange-red e) Green 2) What colour flame do Potassium ions burn with? a) Crimson b) Yellow c) Lilac d) Orange-red e) Green 3) What colour flame do Sodium ions burn with? a) Crimson b) Yellow c) Lilac d) Orange-red e) Green 4) What colour flame do Calcium ions burn with? a) Crimson b) Yellow c) Lilac d) Orange-red e) Green 5) What colour flame do Copper ions burn with? a) Crimson b) Yellow c) Lilac d) Orange-red e) Green

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