Question

Sam adds water to different solids and here are his results.


Colour of the solid
Result after adding water
white
Forms a colourless solution
green
Forms a green solution
blue
Forms a cloudy mixture
grey
Fizzes and forms colourless solution


Name the solid that can be separated by filtration.

Ans. sand

The reaction in the first solution can be reversed when added to water, how can you do this?

Ans.

Which of these mixtures is an irreversible reaction.

Ans.

Answer 1

Answer:

Explanation:

no reaction cant be changed

sand one is irreversible