Metals and Acids

Metals that react quickly/strongly with water and acids are called?

• Reactive
• Unreactive
• Dangerous
• Corrosive

What gas is produced when a metal reacts with an acid?

• Water vapour
• Acidic gas
• Hydrogen
• Nitrogen

Which metal is most likely to react with water or acid?

• Copper
• Potassium
• Magnesium
• Iron

Which salt will be produced if magnesium react with hydrochloric acid?

• Magnesium oxide
• Magnesium sulfate
• Magnesium sulfide
• Magnesium chloride

What are the reactants for the reaction of metal with acid?
Metal + acid ---> metal salt + hydrogen

• Hydrogen
• Metal salt
• Metal
• Metal and acid

What are the products for the reaction of metal with acid?
Metal + acid ---> metal salt + hydrogen

• Metal salt and hydrogen
• Metal salt
• Metal
• Acid

What can you conclude if a metal doesn't fizz when added to water or an acid?

• It has low reactivity
• It may react with a stronger acid
• It has high reactivity
• There is no metal present

The chemical formula for hydrochloric acid is...

• HCl

• H₂O

• HNO₃

• NaCl

The chemical formula for magnesium chloride is....

• MgO

• MgCl₂

• NaCl

• MnCl₂

The positive test result for hydrogen gas, H₂ is

• a lit splint; gas burns with a squeaky pop

• a glowing splint; the splint relights

• it turns lime water milky / cloudy

• none of these