QUESTION 6

How many Cm² are in 18.3 inc² ?

A) 2.54

B) 118

C) 118.1

D) 6.45

QUESTION 7

When heating Liquids in a test tube , you should:

A. Move the test tube back and forth through the flame

B. Look directly into the open end of the test tube to see what is happening

C. direct the open end of the tube away from other students

D. A & C

E. A & B

		A
		B
		C
		A & C
		A & B

QUESTION 8

An unknown metal with a mass of 520 g is added to 50.0 mL of water. The water level rises to a volume of 75.0 mL. What is the density of the metal?

A) 10.4 g/mL

B) 20. g/mL

C) 21 g/mL

D) 20.8 g/mL

		A
		B
		C
		D

QUESTION 9

Determine the volume (ml)of an object that has a mass of 0.25 kg and a density of 7.2 g/cm3.

1mL = 1 Cm³

d = m / V

		34.7 ml
		35 ml
		0.029 ml
		0.035 ml

QUESTION 10

There are __________ ng in a 1 pg.

A) 0.001

B) 1000

C) 0.01

D) 100