Question

Give two reasons to support the statement that CO2 is a compound and not a

mixture​

Answer 1

Answer:

It has different chemical and physical properties from the carbon and oxygen the makes it. ii) You can only separate carbon from oxygen in carbon dioxide using a chemical reaction. iv) Carbon and oxygen that make up the carbon dioxide are chemically bonded to form this compound.

Answer 2

Answer:

(1) Water is made up of 2 elements in a fixed ratio.

(2) Its constituents can be separated only by chemical or electrochemical reactions.

(3) Its formed by reaction between hydrogen & oxygen with a chemical bond.

(4) Water has totally different properties from 2 elements.

(5) It has a fixed boiling point.