Nora's quiz

Sodium+oxygen----->

• Sodium hydroxide

• Sodiumhydroxide+H2

• Sodium oxide

• None of the above

Which of the following is displacement reaction:

• Magnesium+oxygen------> magnesium oxide

• Iron sulfate+zinc---->

  Zinc sulfate+iron

• None of them

The property of sodium is not typical of a metal

• Hard and strong

• Softer and can be easily cut with a knife

• It reacts with water

• A and B

Metals in 1st group of periodic table are mora reactive than other metals so they must be stored:

• Under Water

• In air

• Under oil

• A+B

The word equation for the reaction:

Sodium + nitric acid ==>

• Zinc acid +hydrogen

• Sodium nitrate + H2

• Sodium oxide + H2

• None of them

Which one of the following produce salt:

• Metal + oxygen

• Metal + water

• Metal + acid

• None of them

Can iron displace (push out) calcium in calcium sulfate:

• Yes

• No

Which of the following is (below) Iron in the Reactivity Series:

• Gold and Copper

• Potasium and Sodium

• Zinc and Magnesium

• None of them

In this displacement reaction what will happen:

Aluminium sulfate + silver-->

• No reaction

• Silver will push aluminium out

• We don't know

Potassium+Water ===>

• Potassium chloride + H2

• Potassium hydroxide +H2

• Potassium oxide + H2

• All of them