Identify the type of reaction
CaCl2 + AgNO3 --> AgCl + Ca(NO3)2

Evaporation: this is when warmth from the sun causes water from oceans, lakes, streams, ice and soils to rise into the air and turn into water vapour (gas). water vapour droplets join together to make clouds! condensation: this is when water vapour in the air cools down and turns back into liquid water.

Putting salt in vinegar water

It decreases by 4 is your answer mark brainliest