Ch1 (Che new)

A synthetic polymer, n------ is used for clothing.

Burning gasoline gives ----- to propel automobiles.

Every activity, i.e., breathing , eating, reading, sitting, involves ------.

Chemical ------ occur when you breathe, eat, sit or read.

Chemistry is a study of -------- and their changes

Chemistry is also considered as an experimental ----- since it is based on the results of observations and analyses through many investigations.

About 78% of atmosphere is -------- gas.

An area of study on matter not deal with hydrocarbons is -------- chemistry.

Fermenting wine is c---- change.

Analytical chemistry is a study of components and c------ of substances.

Plastic is a synthetic ----- used to make a variety of products such as water plastic bottles.

Paper is made from -------.

Organic chemistry is an area of study on ------- and their derivatives.

A study of matter and processes of living organisms is known as ------.

The air you breathe is a mixture of o-------, nitrogen, etc.

The behaviour and changes of matter and the related energy are studied in ------- chemistry.