Introduction to Chemistry — CHEMISTRY STD 6 — Question

For the following statement, say whether it describes a solid, a liquid or a gas. Particles are far apart and move in all directions

The process of adding a chemical substance to help the suspended solid particles to deposit as sediment fastly is called

Which of the following is not a waterborne disease ?

State if the following is a physical property of a substance.
Magnesium reacts with dilute hydrochloric acid, liberating hydrogen gas.

The symbol of mercury is

Photosynthesis is a process in which plants

The apparatus to measure an accurate volume of liquid, is

An element is made up of :

A long glass tube with a broad inlet at the top, which allows entry of the reactants into the round bottom flask, during laboratory preparations of gases.

Common salt can be obtained from sea water by