Chemistry 1 Classification and Properties of Matter

Chemical change occurs when water evaporates.

• True

• False

Density is a physical property of a sample.

• True

• False

All molecules are compounds.

• True

• False

Heterogeneous mixture is a type of mixture where particles are distributed uniformly

• True

• False

Compounds can be broken into its component elements by physical means

• True

• False

Atoms of one element are different from atoms of another element.

• True

• False

Postulate 3 of Dalton's Atomic Theory supports that we can convert nitrogen into oxygen.

• True

• False

If the total mass of substances before reaction is 5.0 g, then the total mass of products formed should be less than 5.0 g.

• True

• False

A naphthalene ball has the same elemental composition as the gaseous naphthalene formed during sublimation.

• True

• False

If the ratio of masses of B that can combine with a given mass of A is equal to 3, then the Law of Multiple Proportions applies.

• True

• False