Chemistry questions Form 5

Which of the following is MOST reactive?

• Magnesium

• Lead

• Tin

• Copper

• Zinc

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which metal is more reactive than calcium?

• magnesium

• potassium

• silver

• aluminum

How can you tell that a metal is reacting with water?

• Colour change
• Bright light
• Fizzing
• It gets colder

Tags

NGSS.MS-PS1-2

Choose the least reactive metal

• calcium

• magnesium

• iron

• copper

Choose the most reactive metal

• calcium

• magnesium

• iron

• copper

Which of the following indicates a chemical change?

• Change in state of matter
• Temperature change
• Change in size 
• Change in shape

Tags

NGSS.MS-PS1-2

Which are the signs of chemical change?

• Change in size

• Colour change

• Change in state

• Effervescence / Gas produced

What does displacement mean?

• A chemical reaction where a less reactive metal takes the place of a more reactive metal in a compound.

• A chemical reaction where a more reactive metal takes the place of a less reactive metal in a compound.

• A more reactive metal is removed from a compound.

Tags

NGSS.HS-PS1-1

Magnesium chloride + Sodium → ?

• Sodium chloride + Magnesium

• Magnesium chloride + Sodium (No change)

• Sodium magnesium + Chlorine

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Zinc sulphate + Magnesium → ?

• Magnesium + Sulphur + Hydrogen

• Zinc sulphate + Magnesium

• Magnesium sulphate + Zinc

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2