Chemistry

Rebecca Delacruz

16 June, 02:14

1) The chemical properties of a compound are different from the chemical properties of a mixture because:

A) the substances in a compound are chemically joined in a fixed proportion

B) the substances in a compound are always composed of at least three different types of atoms

C) mixtures are always homogeneous

D) the properties of a mixture are different from those of the substances from which it is made

2) When Kool-Aid is added to water and stirred, the water becomes uniformly colored. This is proof that a chemical change has occurred. T/F

3) Under the same conditions of temperature and pressure, a liquid differs from a gas because the particles of the liquid:

A) are in constant straight-line motion

B) take the shape of the container they occupy

C) have no regular arrangement

D) have stronger forces of attraction between them