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About 78% of atmosphere is -------- gas.
nitrogen
Fermenting wine is c---- change.
chemical
Burning gasoline gives ----- to propel automobiles.
energy
A study of matter and processes of living organisms is known as ------.
biochemistry
A synthetic polymer, n------ is used for clothing.
nylon
Chemistry is also considered as an experimental ----- since it is based on the results of observations and analyses through many investigations.
science
Analytical chemistry is a study of components and c------ of substances.
composition
Every activity, i.e., breathing , eating, reading, sitting, involves ------.
chemistry
The air you breathe is a mixture of o-------, nitrogen, etc.
oxygen
Paper is made from -------.
cellulose
Chemical ------ occur when you breathe, eat, sit or read.
reactions
Plastic is a synthetic ----- used to make a variety of products such as water plastic bottles.
polymer
An area of study on matter not deal with hydrocarbons is -------- chemistry.
inorganic chemistry
The behaviour and changes of matter and the related energy are studied in ------- chemistry.
physical chemistry
Organic chemistry is an area of study on ------- and their derivatives.
hydrocarbons
Chemistry is a study of -------- and their changes
matter
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