1.	An equation stating that two ratios are equal is called a(n) ______.
		A.	proportion	B.	equivalent equation
		C.	rate	D.	cross product
		Hint
	2.	Solve the proportion =
		A.	13.5	B.	80
		C.	20	D.	6
		Hint
	3.	Solve the proportion =
		A.		B.	4.5
		C.		D.	-18
		Hint
	4.	Convert 18 L to mL.
		A.	1.8 mL	B.	18,000 mL
		C.	0.018 mL	D.	180 mL
		Hint
	5.	In chemistry, the smallest sample dealt with in the lab is called a mole. One mole of Carbon has a mass of 12.0 g. If you have 172.3 g of Carbon, how many moles do you have?
		A.	0.07 mole Carbon	B.	0.12 mole Carbon
		C.	14.4 moles Carbon	D.	18.6 moles Carbon
		Hint