The Chemical Formulas and Equations Test consists of 15 questions. Correct answers will be provided after your answers have been submitted.

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1		The formula weight of C6H12O6 is
			A)	180 u
			B)	72 u
			C)	29 u
			D)	24 u
2		The number of sulfur atoms in Al2(SO4)3 is
			A)	3
			B)	4
			C)	7
			D)	12
3		The formula for a compound is given as C2H2. This is a (an)
			A)	empirical formula.
			B)	molecular formula.
			C)	structural formula.
			D)	redundant formula.
4		What number should be in front of H2SO4 in the equation below? 2Al + ?H2SO4 → Al2(SO4)3 + 3H2O
			A)	1
			B)	2
			C)	3
			D)	4
5		The equation below is balanced by placing what number in front of the carbon dioxide? 2C2H5OH + 6O2 → ?CO2 + 6H2O
			A)	4
			B)	6
			C)	10
			D)	14
6		Which of the following equations is balanced?
			A)	4P + 10 O2 → 2P2O5
			B)	SO2 + O2 → S2O5
			C)	2Al + 3HCl → 2AlCl3 + 3H2
			D)	3Mg(OH)2 + 2H3PO4 → Mg3(PO4)2 + 6H20
7		Which of the following represents a replacement reaction?
			A)	Au(s) + HCl(aq) →
			B)	Zn(s) + CuCl2(aq) →
			C)	NaOH(aq) + HNO3(aq) →
			D)	C + O2 →
8		Which of the following represents a combination reaction?
			A)	Au(s) + HCl(aq) →
			B)	Zn(s) + CuCl2(aq) →
			C)	NaOH(aq) + HNO3(aq) →
			D)	C + O2 →
9		Which of the following represents an ion exchange reaction?
			A)	Au(s) + HCl(aq) →
			B)	Zn(s) + CuCl2(aq) →
			C)	NaOH(aq) + HNO3(aq) →
			D)	C + O2 →
10		Which of the following would not result in a reaction?
			A)	Au(s) + HCl(aq) →
			B)	Zn(s) + CuCl2(aq) →
			C)	NaOH(aq) + HNO3(aq) →
			D)	C + O2 →
11		If the atomic mass of oxygen is 16 u and Avogadro's number is 6.02 X 1023 particles per mole, then one mole of ozone, O3, contains
			A)	6.02 X 1023 molecules.
			B)	12.04 X 1023 molecules.
			C)	18.06 X 1023 molecules.
			D)	9.63 X 1024 molecules.
12		How many moles of hydrogen atoms are present in 1 mole of H2O?
			A)	1
			B)	2
			C)	3
			D)	4
13		The mass of 6.02 X 1023 atoms of gold (Au) is
			A)	79 g
			B)	197 g
			C)	475.6 X 1023 g
			D)	1,186 X 1023 g
14		How many moles of oxygen atoms are present in 1 mole of H2O?
			A)	1/2
			B)	1
			C)	2
			D)	3
15		The formula weight of carbon dioxide, CO2 is
			A)	28 u
			B)	44 u
			C)	56 u
			D)	72 u