PSA 6W4 Review (divide by 6)
True/False
Indicate whether the sentence or statement is true or false.
____
1.
(1 point) Salts
are made of the positive ions of an acid and the negative ions of a base.
____
2.
(1 point) When
oxygen-18 does and alpha decay it produces carbon-22 and an alpha particle.
____
3.
(1 point) Acids
will turn blue litmus paper red.
____
4.
(1 point) Nuclear
____
5.
(1 point) In
order to speed up the rate of dissolving for a solution you could cool of the solvent.
____
6.
(1 point) A
substance that is present in solution in a smaller amount and is dissolved by the solvent is called the
fission is the process they use at the site.
solute.
____
7.
(1 point) Beta
____
8.
(1 point) A
____
9.
(1 point) Phenolphthalein
____ 10.
particles are neutrons.
radioisotope with a half-life of 25 years would still have 1/8 of it unchanged after 150 years.
(1 point) Geiger
turns pink in a base.
counters are worn by all site workers to let them know when they are being exposed to
radiation.
Matching
a. This compound is an acid.
b. This compound is a base.
____
____
____
____
____
11.
12.
13.
14.
15.
(1 point) KOH
(1 point) H2CO3
(1 point) NH4OH
(1 point) Li2CO3
(1 point) Al2(SO4)3
a. Strong force
b. Radioactivity
c. Fission
____
____
____
____
____
16.
17.
18.
19.
20.
c. This compound is a salt.
d. Fusion
e. Radioisotope
(1 point) Any
atom containing an unstable nucleus.
the splitting of an atomic nucleus into two smaller parts.
(1 point) Is the process in which the nuclei of two atoms combine to form a large nucleus.
(1 point) Is the process in which an unstable atomic nucleus emits charged particles and energy.
(1 point) Is the attractive force that binds protons and neutrons together in the nucleus.
(1 point) Is
Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.
____ 21.
(1 point) Electrolytes
a. Tall or Short
____ 22.
____ 23.
a beta particle is emitted, the mass number of a nucleus
a. Remains the same b. Decreases by four c. Increase by four d. Decreases by one
(1 point) According
____ 26.
(1 point) This
d. Very small
e. Increase by one
half-life of a radioisotope is the amount of time it takes for
a. All the sample to decay b. Detectable radiation to be absorbed by a sample c. The age of an artifact to
be calculated d. Half the sample to decay e. How long something will live after being exposed to that
radiation
to E=mc2
a. A large amount of mass can release small amounts of energy b. The faster an vehicle travels the more
mass it uses c. Mass and energy are unrelated d. A small amount of mass can release large amounts of
energy e. Electricity equals meters times chemistry squared
a. HCN
(1 point) In
a. Liquid
compound is a base
b. Be(MnO4)2 c. Be(NO2)2 d. Be(OH)2 e. H2SO4
what state must matter exist for fusion reactions to take place?
b. Solid c. Gas d. It doesn’t matter they all work. e. Plasma
(1 point) One
a. Water
____ 30.
e. Weak or strong
(1 point) When
____ 25.
____ 29.
d. Lucky or Unlucky
nuclear fission, great amounts of energy are produced from
a. A series of chemical reactions b. Particle accelerators c. Very large amounts of mass
amounts of mass e. Very big combustion reactions
(1 point) The
____ 28.
c. Smart or Dumb
(1 point) During
____ 24.
____ 27.
are classified as
b. North or South
of the “rules of thumb” for solubility is like dissolves
b. Soda pop c. Like d. Toast e. Unlike
(1 point) In
order to be a weak acid, it must
a. Produce lots of OH- ions b. Never work out c. Ionize or dissociate in water very little
muscles e. Almost totally ionize or dissociate in water
can tell it’s got more than one thing in it
a. Solution b. Orthodox c. Heterogeneous d. Homogeneous
d. Have small
(1 point) You
____ 31.
(1 point) What
____ 32.
(1 point) Which
____ 33.
(1 point) The
____ 34.
(1 point) What
____ 35.
(1 point) How
____ 36.
(1 point) Carbon-14
e. Heterodox
type of nuclear decay releases energy but not a particle?
a. Oxidation b. Alpha decay c. Beta decay d. Electron decay e. Gamma decay
of the following is an example of a transuranium element?
a. Thorium, Th b. Uranium, U c. Curium, Cm d. Lead, Pb e. Samarium, Sm
compound is an acid
a. (NH4)2CO3 b. C6H12O6 c. Mg(OH)2 d. Al2(Cr2O7)3 e. HClO
is the process in which an unstable atomic nucleus emits charged particles or energy or both?
a. Radioactivity b. Oxidation c. Decomposition d. Synthesis e. Reduction
does raising the temperature affect the rate of nuclear decay?
a. Speeds it up b. Slows it down c. There is no affect d. For every ten degree rise the rate triples
e. For every ten degree rise the rate doubles
has a half-life of 5730 years. If the age of an object older than 50,000 years cannot be
determined by radiocarbon dating, then
a. Carbon-14 levels in a sample are undetectable after approximately fourteen half-lives. b. A radioisotope
with a shorter half-life should be used to date the object. c. Carbon-14 levels in a sample are undetectable
after approximately twenty half-lives. d. The half-life of carbon-14 is too long to accurately date the object.
e. Carbon-14 levels in a sample are undetectable after approximately nine half-lives.
____ 37.
(1 point) One
way to determine the degree of saturation of a solid-liquid solution is to drop a crystal of the solute
into the solution. If the crystal sits at the bottom of the container, the solution is
a. Saturated b. Supersaturated c. Solid d. Unsaturated e. Concentrated
____ 38.
(1 point) Which
a. Proton
____ 39.
of the following particles is smaller than the rest?
b. Nucleus c. Electron d. Alpha particle e. Neutron
(1 point) An
alpha particle is identical to
a. A neutron b. A proton c. A helium nucleus
____ 40.
(1 point) The
____ 41.
(1 point) Many
____ 42.
(1 point) All
people work near a source of nuclear radiation. To detect the amount of exposure they have to
radiation they most likely will use a
a. Radon kit b. Lead shield c. Decoder ring d. Film badge e. Geiger counter
living things use this to maintain pH levels
a. Neutralization reactions b. Colloids c. Suspensions
(1 point) A
____ 44.
(1 point) Which
____ 45.
(1 point) The
e. Buffers
of the following statements is NOT true?
a. Naturally occurring nuclear radiation is called background radiation. b. You are exposed to nuclear
radiation every day. c. All natural radiation is at a level low enough to be safe. d. Alpha particles are
stopped by a sheet of paper or clothing. e. Most of the nuclear radiation you are exposed to occurs naturally
in the environment.
stronger acid or base solutions are
a. The closer to 0 their pH is b. The more water there is in the solution
d. The closer to 7 their pH is e. The closer to 14 their pH is
most penetrating form of nuclear radiation is
a. An alpha particle b. They are all the same c. A gamma ray
c. The further from 7 their pH is
(1 point) The
(1 point) Which
____ 48.
(1 point) Litmus
____ 49.
(1 point) It
____ 51.
d. Solvents
substance dissolved in water by breaking up into smaller pieces. These pieces of the same
substance spread throughout the water. This process is known as
a. Dissolving b. Dissociation c. Electrolysis d. Dispersion e. Ionization
____ 47.
____ 50.
e. An electron
half-life of tritium, or hydrogen-3, is 12.32 years. After about 24.6 years, how much of a sample
of tritium will remain unchanged?
a. 1/8 b. 1/5 c. 1/2 d. 1/4 e. 1/3
____ 43.
____ 46.
d. A hydrogen nucleus
d. A beta particle
e. An electron
of the following is an advantage of using nuclear power plants to produce electricity?
a. Nuclear power plants do not pollute the air. b. Nuclear power plants produce wastes that are easy to
dispose of. c. There are no advantages of using nuclear power plants to produce electricity. d. Nuclear
power plants do not have the potential to release large amounts of radiation. e. Nuclear power plants
produce more stable wastes compared to fossil fuel combustion.
paper and phenolphthalein, when used to determine if a solution is acidic or basic, are called
a. Homogenous b. Reducing agents c. Indicators d. Oxidizing agents e. Electrolytes
looks like one substance
a. Orthodox b. Heterogeneous c. Heterodox
d. Homogeneous
e. Mixture
(1 point) In
order to be a weak base, it must
a. Never work out b. Produce lots of H+ ions c. Ionize or dissociate in water very little
muscles e. Almost totally ionize or dissociate in water
d. Have small
(1 point) Alpha-emitting
substances, such as radon gas, can be a serious health hazard only if
a. They are inhaled or eaten b. Alpha radiation is always safe c. Exposure to them is external
can see them coming e. Their radiation strikes the skin
d. You
____ 52.
(1 point) When
a. Goes up
you add solutes to a solution, the freezing point
b. May go up or down c. Stays the same d. Goes down
____ 53.
(1 point) If
____ 54.
(1 point) Solutions
a saturated solution of sugar water is heated, the solution will become
a. Saturated b. Radioactive c. Plasma d. Supersatureated e. Unsaturated
a. Three parts
____ 55.
____ 56.
e. Becomes the boiling point
have
b. The leading part
c. Two parts
d. Money
e. One part
(1 point) The
main purpose of a particle accelerator is to
a. Reproduce reaction conditions found in nature. b. Slow down small particles
products d. Magnetize small particles e. Speed up small particles
power plants generate electricity from
a. Solid fossil fuels b. Combustion c. Redox reactions
c. Slow down reaction
(1 point) Nuclear
____ 57.
(1 point) A
____ 58.
(1 point) In
____ 59.
(1 point) A
____ 60.
(1 point) One
d. Nuclear fusion
e. Nuclear fission
compound has a pH of 6 in solution, where very little of it has ionized. The compound is a
a. Neutral solution b. Weak base c. Strong base d. Weak acid e. Strong acid
this type of reaction H+ from the acid and the OH- from the base form water
a. A synthesis reaction b. An emotional reaction c. A neutralization reaction d. A decomposition
reaction e. A single replacement reaction
student dissolved equal amounts of salt in equal amounts of warm water, room-temperature water,
and ice water. Which of the following is true?
a. The salt dissolved at the same rate in all of them. b. Salt doesn’t dissolve in water. c. The salt dissolved
most quickly in the room-temperature water. d. The salt dissolved most quickly in the warm water e. The
salt dissolved most quickly in the ice water.
of the three things involved in a solubility graph is the
a. Day of the year b. Time of the day c. Equilibrium d. State of matter
e. Temperature