Topic C2.3 Metals and Acids Core Questions

List some of the properties of most metals.

• shiny, conduct heat and electricity

• dull, brittle, poor conductors

• soft, non-magnetic, insulators

• transparent, low melting point

What is the gas given off when a metal reacts with an acid?

• hydrogen

• oxygen

• carbon dioxide

• nitrogen

Do all metals react with acids?

• no

• yes

• sometimes

• only some metals

What will determine if a metal reacts with an acid?

• How reactive it is

• Its color

• Its melting point

• Its density

What is the other product of a metal + acid reaction?

• a salt

• an alkali

• a base

• an oxide

What type of salt will hydrochloric acid form?

• chlorides

• sulphates

• nitrates

• carbonates

What does the state symbol (s) mean?

• solid

• liquid

• gas

• aqueous

What does the state symbol (g) mean?

• gas

• liquid

• solid

• aqueous

What type of compound is formed when a metal combines with oxygen?

• a metal oxide

• a metal chloride

• a metal nitrate

• a metal sulfate

Why does gold stay shiny in the air?

• gold is very unreactive

• gold is magnetic

• gold dissolves in air

• gold reacts quickly with oxygen