Collisions between the particles of gas and the container walls.
To find density, you just divide the mass by the volume (density is the measurement of the amount of mass in a certain volume):
The chemical equations representing the reaction between the given combinations are:
1. .This reaction is a precipitation reaction as one of the product formed, CaSO is a solid.
2. In this reaction all the products are aqueous or soluble in water.
3.. Both the products of this reaction are soluble in water.
Hence, the correct option would be 1. CaS +
Geology and astronomy are two types of earth science. Geology is the study of rocks and minerals and astronomy is the study of space.