Fundamentals of chemistry

Question 1

what is organic chemistry

Answer 1

chemistry of carbon based compounds

Question 2

what is inorganic chemistry

Answer 2

non carbon chemistry

Question 3

what is analytical chemistry

Answer 3

using methods and equipment to separate, identify and quantify matter

Question 4

What is chemical change with an example

Answer 4

when a substance is converted into an entirely new substance, where molecules reform into a new substance e.g. combustion of methane to carbon dioxide

Question 5

What is physical change with an example

Answer 5

substance does not change into another but merely changes it’s physical state of matter e.g ice to water to steam from boiling water

Question 6

What is an element

Answer 6

a pure substance that contains only one atom

Question 7

What is a compound

Answer 7

A pure substance still that can be separated into elements chemically but not physically and contains 2 atoms. e.g. water H2O

Question 8

What are mixtures with an example

Answer 8

substances that can be separated with physical changes such as evaporation of sea water that gives off pure substance of water vapour and solids such as sodium chloride, no definite properties as they depend on certain concentrations such as water with more salt having a lower freezing point