WorksheetsChemistry AG
Total questions: 11
Worksheet time: 4mins
What happens if we dilute an acid with water
Energy is absorbed
Energy is released
No changes
The acid changes to base
What happens if we dilute a base with water
Ph is increased
Energy is absorbed
Energy is released
The base is being concentrated
What happens if we add a neutral salt to water
No changes
Exothermic reaction
Endothermic reaction
The salt will be acidic
What is the reversed reaction of photosynthesis
Endothermic reaction
Exothermic reaction
Cannot be reversed
This reaction doesn't exist
Why shouldn't we put water in highly acidic substance
An enormous exothermic reaction can be seen which is harmful
An enormous endothermic reaction can be seen which is harmful
No changes can be seen which are harmful
Acid will turn into a base which is harmful
Why nothing happens if we mix neutral salts with water
Both salt and solvent are already at their least energy levels which makes them non-reactive
Both salt and solvent are acid and base respectively which makes them non-reactive
Both salt and water are acidic which makes them non-reactive
Both salt and water are basic which makes them non-reactive
What is the color of hydrated copper sulphate
Blue
White
Light Green
Black
What happens when iron is added to copper sulphate solution
No changes
The Blue Colored copper sulphate changes into black colored iron sulphate
The grey solid changes into a reddish-brown color
Copper sulphate losses all its water of cystallization
What is the PH level of K2SO4
7
14
2
9
What are neutral salts
Salts which are neither acidic and basic
Salts which are acidic
Salts which are basic
Salts with the most energy levels
Substance with the PH less than 7
are acidic
are basic
are neutral
Ph below 7 doesn't exist
