EASY POINTS EASY EASY POINTS

Compounds are substances made from atoms of different elements joined by chemical bonds. They can only be separated by a chemical reaction. ... A mixture is made by simply mixing together elements and compounds. No new chemical bonds are formed

compounds containing two elements

sodium chloride

zinc sulfide

aluminium oxide

compounds containing three elements

potassium nitrate

copper carbonate

i.

Mixture are made up of element that are not chemically bonded. (eg. In the air, containing O2, H2, N2 but jot mized together)

Compounds are made up of 2 or more type of atoms that are chemically bonded. (e.g CO2, H20)

ii.

Compound containing 2 elements :

Compound containing 3 elements :

answer

i think the answer is a) as air pressure in an area increases, the density of the gas particles in that area decreases.

hope it

the correct answer is option d

explanation:

i was wrong its d because they dont use cm when calculating square roots