The pH runs from 0 (strongly acidic) through 7 (neutral) to 14 (strongly alkaline). Salts are made when acids and bases react together. The particular salt made depends upon the acid and base used.
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
A liquid has a pH of 8. What does this mean?
It is weakly acidic
It is weakly alkaline
A liquid has a pH of 1. What does this mean?
It must be sodium hydroxide solution
It is strongly acidic
Which acid could be used to make ammonium nitrate (a type of fertiliser)?
Farmers use lime to neutralise their acidic soils. What sort of substance is lime?
A sharp tasting drink
Which salt is made when copper oxide and sulfuric acid react together?
What products are formed when a metal oxide reacts with an acid?
A salt only
A salt and water
A salt, water and carbon dioxide
What products are formed when a metal carbonate reacts with an acid?
What is the name of the salt made from nitric acid and potassium hydroxide?