ibrahim the genius

what is this

• ph scale

• dumb science

ph of water

which of these ph numbers is a base

• 8

• 14

• 13

• 7

what is neutralization

A liquid has a pH of 1. What does this mean?

• It must be sodium hydroxide solution

• It is strongly acidic

• It is weakly acidic

What happens to litmus paper in acidic solutions?

• Red litmus turns blue

• Blue litmus turns red

• Yellow litmus turns green

Universal indicator solution is usually green to begin with. What does this mean?

• It is acidic

• It is alkaline

• It is neutral

Farmers use lime to neutralise their acidic soils. What sort of substance is lime?

• A base

• An acid

• A sharp tasting drink

Which acid could be used to make ammonium nitrate (a type of fertiliser)?

• Sulfuric acid

• Hydrochloric acid

• Nitric acid

Which salt is made when copper oxide and sulfuric acid react together?

• Copper sulfate

• Copper sulfuroxide

• Copper sulfide