Exam Review 1

The maximum amount of solute that can be dissolved in a given amount of solvent is its?

• dilution

• solubility

• concentration

• density

Three examples of physical changes are:

• sawing wood, crushing a can, and burning marshmallow

• burning gasoline, rotting an egg, and exploding fireworks

• freezing water, evaporation of gasoline, and rusting of a nail

• boiling water, blowing up a balloon, and melting a candle

A solution that contains all of the solute it can normally hold at a given temperature is:

• saturated

• unsaturtated

• supersaturated

• diluted

Hydrogen, Gold, Iron are all examples of

• homogeneous mixtures

• heterogenous mixtures

• elements

• compounds

A type of matter formed by chemically joining two or more elements is known as a

• compound

• solution

• colloid

• suspension

Water's _____________ makes it an excellent solvent for salts like NaCl, as well as other substances required to carry out metabolic processes.

• pH

• specific heat

• polarity

• density

Milk, paint, and mayonnaise are all examples of

• homogeneous

  mixtures

• heterogeneous

  mixtures

• compounds

• elements

a solution that contains more of the solute than it can normally hold at a given temperature is

• saturated

• unsaturated

• supersaturated

• mega-saturated

The Law of Conservation of Mass states:

• Mass never stays constant

• Mass is always added during a chemical change

• Mass is always lost during a chemical reaction

• Mass is not lost or created during a chemical change

An element with 5 protons, 6 neutrons, and 8 electrons has an atomic number of

• 5

• 6

• 8

• 11