GCSE / O Levels Chemistry

When the rubber bulb of the dropper in the diagram is squeezed, the aqueous silver nitrate drops
into the aqueous sodium chloride and a white precipitate of silver chloride is formed.
rubber bulb
dropper
- silver nitrate(aq)
-sodium chloride(aq)
What happens to the total mass of the bottle and contents?
A It increases due to the formation of the heavy precipitate.
B
It remains the same because only a physical change has taken place.
C t decreases because heat is evolved.
D
It remains the same because none of the products escapes from the bottle.


Identification of Ions and Gases | 2012 - M/J - 5070/12 | Q12