reactivity of elements 2

Which row shows the order of reactivity of the metals?

• A

• B

• C

• D

Aluminium reacts with iron (III) oxide, forming iron. The equation for this reaction is shown.

Which statement describes why this is a reduction and oxidation reaction.

• Aluminium gains oxygen and iron (III) oxide loses oxygen.

• Aluminium is reduced and iron (III) oxide is oxidised.

• Aluminium oxide is oxidised and iron is reduced.

• Iron gains oxygen and aluminium loses oxygen.

Five metals are reacted with cold water and with dilute hydrochloric acid. Some of the results are shown in the table.

What is the order of reactivity, from most to least reactive?

• Copper → calcium → magnesium → iron → sodium

• Copper → iron → magnesium → calcium → sodium

• Sodium → calcium → magnesium → iron → copper

• Sodium → iron → magnesium → calcium → copper

The table shows physical properties of some substances.

Which substance is a metal?

• A

• B

• C

• D

A cup is made of copper.

Why is copper not used for hot drinks?

• Copper is a good conductor of heat.

• Copper is a good electrical conductor.

• Copper is brightly coloured.

• Copper reacts with saliva.

The least reactive in oxygen in this list is

• iron

• zinc

• copper

• lead

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which one of the following metals reacts most vigorously with cold water?

• Sodium
• Magnesium
• Copper
• Zinc

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which metal is more reactive than calcium?

• magnesium
• potassium
• silver
• aluminum

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which of the following is NOT a clue that a chemical change has occurred?

• change in color
• production of gas
• change in termperature
• change in shape

Tags

NGSS.MS-PS1-2

Aluminium is more reactive than ....

• Calcium and Zinc

• Sodium and Gold

• Magnesium and Copper

• Lead and Iron