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CHEMISTRY
TOPIC 8 SOL REVIEW HOMEWORK
Directions: Show all work where you see a * by either
explaining your answer or showing the mathematical set-up
1. According to the Arrhenius theory, which list of
compounds includes only bases?
a) KOH, Ca(OH)2, CH3OH b) NaOH, Ca(OH)2, CH3COOH
c) LiOH, Ca(OH)2, C2H4(OH)2
d) KOH, NaOH, LiOH
2. The mass of the calcium atom is due primarily to
the mass of its a) protons only b) neutrons only
c) protons and neutrons d) protons and electrons
3. Which structure represents a nonpolar molecule?
a) H – Cl b) H – H c) H – :O: – H d) NaBr
4. In an aqueous solution, which substance yields
hydrogen ions as the only positive ions?
a) C2H5OH b) HC2H3O2 c) KH d) KOH
5. Given the equilibrium reaction at constant
pressure: 2HBr(g) + 17.4 cal H2(g) + Br2(g),
when the temperature is increased, the equilibrium
will shift _________ and [HBr] will ___________
a) left, increase b) right, increase c) left, decrease
d) right, decrease
6. What color is phenolphthalein in a basic
solution? a) blue b) pink c) yellow d) colorless
7.Given the reaction at equilibrium:
2SO2(g) + O2(g)  2SO3(g) + heat,
which change will shift the equilibrium to the right?
a) adding a catalyst b) adding more O2(g)
c) decreasing pressure d) increasing temperature
8. Name two reasons why the positively charged
alpha particles used by Rutherford were deflected
by the nucleus of the gold atoms.
1The nucleus is positively charged and so is the
alpha particles so they are not attracted to each
other.
2)They were used because the alpha particles would
not be attracted to the nucleus.
9. Which atomic model has no subatomic particles?
a) Rutherford b) Thomson c) Dalton d) Bohr
10. Which scientist discovered that the atom is
mostly empty space?
a) Rutherford b) Thomson c) Dalton d) Bohr
11. Red litmus will turn blue when placed in an
aqueous solution of
a) HCl b) CH3OH c) HC2H3O2 d) NaOH
12. Given the equilibrium system at 25oC,
NH4Cl(s) NH4+(aq) + Cl-(aq), ∆H = +3.5 kcal/mol)
which change will shift the equilibrium to the right?
a) decreasing temperature to 15oC
b) increasing temperature to 35oC
c) dissolving NaCl (produces Cl- ions)
d) decreasing pressure
13. What is the maximum number of covalent
bonds that carbon can form? a) 1 b) 2 c) 3 d) 4
14. Which kind of particle, when passed through an
electric field, would be attracted to the negative
electrode? a) alpha particle b) beta particle
c) neutron d) electron
15. What is the approximate mass of an electron?
a) 1 atomic mass unit (amu) b) 1/1836 of a proton
c) 1/12 of a carbon atom d) 1835/1836 of a proton
16. Water normally boils at 1000C at standard
pressure. Which of the following pressures would
cause water to boil at 60OC? a) 2 atm
b)
149 mmHg c) 101.3 kPa d) 860 torr
17. Which of the following atomic models was the
first to show electrons separate from the protons?
a) Dalton b) Moseley c) Rutherford d) Thomson
18. When a metal reacts with an acid, the following
is the type of reaction that occurs: a) synthesis
b) decomposition c) single replacement d) double
replacement
19.* Oxygen gas is collected over water at 15oC.
The atmospheric pressure is 700 torr. What is the
partial pressure of the oxygen if the water vapor
pressure is 25 torr? 675 torr is the partial pressure
of oxygen.
20. How many covalent bonds can a halogen form?
a) 1 b) 2 c) 3 d) 4