Y8 Reactions of metal and oxygen/water word equations

Complete: Magnesium + oxygen -> ?

• Magnesium oxide
• Magnesium dioxide
• Magnesium hydroxide
• Magnesium sulphide

Magnesium + ? -> Magnesium chloride + hydrogen

• Sulphuric acid
• Nitric acid
• Hydrochloric acid
• Chlorine

What is wrong with this equation?: Copper + Oxygen = Copper oxide

• It should be carbon dioxide not oxygen
• There is an equals (=) sign
• There's nothing wrong with it
• It should be magnesium on the left and not Copper

Complete: Potassium + water -> ?

• Potassium oxide + hydrogen
• Potassium hydroxide + hydrogen
• Potassium hydroxide only
• Potassium oxide only

Complete: Lithium + oxygen ->

• Lithium oxide
• Lithium hydroxide
• There is no reaction
• It explodes

Sodium + water -> ?

• sodium hydroxide + hydrogen
• sodium oxide
• sodium oxide + hydrogen
• Sodium hydroxide

What is the TYPE of reaction when a metal reacts with oxygen

• displacement
• precipitation
• reduction
• oxidation

Which of these metals reacts the fastest?

• Calcium
• Lithium
• Sodium
• Potassium

Complete: Calcium + ? -> Calcium hydroxide + hydrogen

• Sodium
• hydrogen
• oxygen
• water

Why do metals appear to get 'heavier' when they react with oxygen?

• They melt
• They condense
• They lose oxygen
• They gain oxygen