UNIT 1 - Review

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

• The shirt is red.

• The shirt has a mass of 15 grams.

• The shirt is 72 cm long.

• The shirt is ugly.

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

A solution where the solvent is water is known as a(n) .

• aqueous solution

• alloy

• solute

• substance

Tags

NGSS.HS-ESS2-5

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

• physical

• chemical

• intensive

• extensive

Micah tells his mom he can’t go to school today to take his chemistry test because he is running a temperature of 310.2 K. What is his temperature in degrees Fahrenheit?

• -11.4 ^oF

• 2.81 ^oF

• 37.1 ^oF

• 98.7 ^oF

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

• solid

• liquid

• gas

• plasma

Tags

NGSS.MS-PS1-4

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.

You are given a container filled with clumps of iron and sand. You can separate the iron from the sand using a magnet. This makes this a .

• homogeneous mixture

• compound

• heterogeneous mixture

• solution

Which of the following measurements would be considered the smallest?

• 10,000 ug

• 1,000 hg

• 100 cg

• 10 g