Chemistry Final Exam

Which of the following is an example of a qualitative observation?

• The shirt is red.
• The shirt is 72 cm long.
• The shirt has a mass of 15 grams.
• The shirt is ugly.

A property of matter that depends on the amount of matter present would be considered a(n) _______ property.

• physical
• chemical
• intensive
• extensive

Matter with an indefinite shape but a definite volume would be considered a

• Solid
• Liquid
• gas
• plasma

How many significant figures are in the measurement 760 mmHg?

• 0
• 1
• 2
• 3

How many significant figures are in the measurement 0.0103 mL?

• 2
• 3
• 4
• 5

Which of the following is not an example of a physical change?

• Cutting a piece of string in half.
• Freezing water into an ice cube.
• Crumpling a piece of paper into a ball
• Letting the food in your lunch box rot in your locker.

What is purposefully being manipulated and changed in an experiment is the

• control group
• independent variable
• constant
• dependent variable

You can determine the identity of an element if you know how many ______ it has.

• protons
• neutrons
• electrons
• energy levels

A neutral atom may contain 8 protons,

• 9 neutrons and 10 electrons.
• 9 neutrons and 8 electrons.
• 8 neutrons and 10 electrons.
• 10 neutrons and 9 electrons.

The number of energy levels an atom will have is based on the number of _____ it has.

• protons
• neutrons
• electrons
• quarks