Metals and Acids

Even ordinary rainwater is acidic.

• True

• False

When a metal reacts with acids,

• Effervescence occurs

• The metal seems to disappear into solution

• All of the above.

Metal + oxygen =

• Metal hydroxide

• Metal oxide

• Salt

Salts are colorless and

• Soluble

• Acid

• Not soluble

We can only see the salt when we evaporate the water.

• True

• False

Hydrochloric acid forms sulfate salts

• True

• False

iron + hydrochloric acid =

• hydrogen

• iron chloride

• iron chloride + water

• iron chloride + hydrogen

Calcium + nitric acid =

• calcium chloride + hydrogen

• calcium sulfate + hydrogen

• calcium nitrate + oxygen

• calcium nitrate + hydrogen