Chemistry Final Exam Study Guide

Which of the following is a physical property?

• Explosive

• Combustible

• Melting point

• Ability to rust

Which of the following is true about homogeneous mixture?

• They are known as solutions.

• They consist of two or more phases.

• They have compositions that never vary.

• They are always liquids.

Which of the following is a mixture?

• Baking soda

• Mayonaise

• Sucrose

• Table salt

Which of the following represents a compound?

• H

• H-3

• O-16

Which of the following is a chemical property?

• Color

• Hardness

• Freezing point

• Ability to react with oxygen

Which of the following is true for all chemical reactions?

• The total mass of the reactants increases.

• The total mass of the products is greater than the total mass of the reactants.

• The total mass of the products is less than the total mass of the reactants.

• The total mass of the reactants equals the total mass of the products.

Which group of measurements is the most precise? (Each group of measurements is for a different object.)

• 2 g, 3 g, 4 g

• 2.0 g, 3.0 g, 4.0 g

• 2 g, 2.5 g, 3 g

• 1 g, 3 g, 5 g

Three different people weigh a standard mass of 2.00 g on the same balance. Each person obtains a reading of 7.32 g for the mass of the standard. These results imply that the balance that was used is__.

• Accurate

• Precise

• Accurate and precise

• Neither accurate nor precise

In the measurements 0.503 L, which digit is the estimated digit?

• 5

• The 0 immediately to the left of 3

• 3

• The 0 to the left of the 3

Density is found by dividing___.

• Mass by volume

• Volume by mass

• Mass by area

• Area by mass