Preparing salts

Magnesium and hydrochloric acid are mixed together in a beaker, hydrogen is produced as well as magnesium chloride.

Choose correct word equation

• magnesium chloride + hydrogen --> magnesium + hydrochloric acid

• magnesium + hydrochloric acid --> magnesium chloride + hydrogen

Magnesium + Hydrochloric acid --> Magnesium chloride + hydrogen

Choose correct reactants

• Mg, HNO₃

• Mn, HNO₄

• Mg, HCl

• Mn, H₂SO₄

Iron + Hydrochloric acid --> ?

• iron sulfate + water

• iron chloride + hydrogen

• iron chloride + water

• iron + hydrogen

Salts that are made with carbonic acid are called ______________.

• chlorides

• sulfates

• nitrates

• carbonates

acid + metal ----->

• salt + hydrogen

• salt + water + carbon dioxide

• salt + water

• salt + carbon dioxide

Acid + Carbonate ----->

• salt + hydrogen

• salt + water + carbon dioxide

• salt + water

• salt + carbon dioxide

Magnesium + sulphuric acid --> ?

• magnesium sulfate + water

• magnesium chloride + hydrogen

• magnesium chloride + water

• magnesium sulfate + hydrogen

Which metal is the least reactive out of: copper, magnesium, zinc and iron?

• copper

• magnesium

• zinc

• iron

Which equation correctly shows the displacement of copper by zinc?

• copper + zinc sulphate --> copper sulfate + zinc

• zinc sulphate + copper --> copper sulfate + zinc

• copper sulfate + zinc --> zinc sulfate + copper

Which equation correctly shows the displacement of zinc by iron?

• copper + zinc sulphate --> copper sulfate + zinc

• zinc sulphate + copper --> copper sulfate + zinc

• copper sulfate + zinc --> zinc sulfate + copper

• Iron cannot displace zinc