Unit-5 Chemical Reactions (G-7) Flashcards

Front

A change where no new substance is formed; only the form or state changes.

Back

Physical process

Front

A change that results in the formation of one or more new substances with different properties.

Back

Chemical reaction

Front

Melting of ice is an example of a.

Back

Physical process

Front

Burning of paper is an example of a.

Back

Chemical reaction

Front

Rusting of iron involves formation of a new substance. It is a.

Back

Chemical reaction

Front

A process that produces new substances by rearranging atoms.

Back

Chemical reaction

Front

The starting materials in a chemical reaction.

Back

Reactants

Front

The substances formed in a chemical reaction.

Back

Products

Front

A number written below and to the right of a chemical symbol in a formula.

Back

Subscript

Front

A number placed in front of a chemical formula to show how many molecules are involved.

Back

Coefficient