310 Final Exam review

A __________ is a summary of observed behavior, and a __________ is an explanation of behavior.

• law, measurement

• hypothesis, theory

• theory, law

• law, theory

Express 30529000 in scientific notation.

• 3 x 10⁷

• 3.0529 x 10⁷

• 305 x 10⁷

• 30529 x 10³

How many significant figures are in the number 34.00500?

• 2

• 3

• 5

• 7

Find the volume of an object that has a density of 3.14 g/mL and a mass of 74.0 g.

• 232 mL

• 23.6 mL

• 2.36 x 10^-2 mL

• 4.24 x 10^-2 mL

Perform the following conversion: 6.69 m/s = __________ mi/h

• 241

• 0.334

• 15.0

• 13.4

Which of the following processes is a physical change?

• Evaporating Water

• Decomposing Meat

• Rusting Iron

• Burning Gasoline

Which of the following is a homogeneous mixture?

• Gasoline

• Sodium Chloride

• Soil

• Copper Metal

The state of matter for an object that has a definite volume but not a definite shape is

• solid

• liquid

• gas

A __________ change involves a change in the fundamental components of the substance; a given substance changes into a different substance or substances.

• potential

• physical

• chemical

• kinetic

Which atomic particle determines the chemical behavior of an atom?

• proton

• neutron

• electron

• nucleus