metal+oxygen=

• acid

• alkali

• metal oxide

• hydrogen

Copper+Oxygen=

• nitrate

• Copper oxide

• oxygen

• oxide

Guess which metal is reacting with water? (from the image)

• Zinc

• Chlorine

• Sodium

• Copper

Who am I :-

I react immediately with oxygen

• Gold

• Platinum

• Potassium

• Copper

Metal + Water=

• metal oxide

• oxide

• Metal hydroxide +hydrogen

• hydroxide

Sodium and water is a reaction of

• metal and oxygen

• metal and acid

• metal and water

• only metal

Choose the least reactive metal

• calcium

• magnesium

• iron

• copper

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.

Zinc sulphate + Magnesium → ?

• Magnesium + Sulphur + Hydrogen

• Zinc sulphate + Magnesium

• Magnesium sulphate + Zinc

What is the correct decreasing order of metal reactivity with water ?

• Mg > Na > Li > K

• Mg > Li > Na > K

• Na > Li > Mg > K

• K > Na > Li > Mg