When you move from left to right across a row and up a column on the periodic table, which of the following statements i

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When you move from left to right across a row and up a
column on the periodic table, which of the following statements is
true?
It becomes impossible to add an electron to the atom.
It becomes more difficult to add an electron to the atom.
It has no effect on how difficult it is to add an electron to
the atom.
It becomes easier to add an electron to the atom.
These two compounds would be classified as
__________.
isotopes
structural isomers
spatial isomers
space-filling models
Which of these pairs of atoms would experience an ionic
bond?
Cl and Cl
S and O
H and S
K and Br
How many double bonds are in CO₂?
1
3
0
2
What is the correct name for Na₂SO₄?
disodium monosulfur tetraoxide
sodium (II) sulfoxide
sodium sulfate
sodium sulfur oxide
Which of the following is polar and has a linear
molecular geometry?
H₂O
I₂
CCl₄
HCN
Which of the following compounds contains the largest
number of atoms?
1.00 mole of NH₃
2.00 moles of KCl
1.00 mole of HBr
1.00 mole of H₂SO₄
2CaO (s) --> 2Ca (s) + O₂ (g) would be best
classified as which type of reaction?
single displacement
oxidation-reduction
precipitation
acid-base
When you balance the equation Ca(OH)₂ + H₃PO₄ --->
Ca₃(PO₄)₂ + H₂O, what is the coefficient of calcium
phosphate?
2
1
3
6
If 1.50 moles of nitrogen gas reacts with an excess of
hydrogen gas, what mass of ammonia (NH₃) would be
produced? [N₂ + 3H₂ --> 2NH₃; N = 14.0
g/mol, H = 1.01 g/mol]
34.1 g
51.1 g
25.5 g
1.50 g
Which type of battery is most commonly used in
rechargeable portable electronic devices?
lead-acid
lithium ion
alkaline
hydrogen fuel cell
According to __________, energy cannot be created or
destroyed, and that it can only change its form.
the law of conservation of energy
heat capacity
potential energy
thermochemistry
Which of the following represents work?
PΔV
ΔH
ΔU
ΔP
What is the sign of the entropy change of the universe
at room temperature (298.15 K), and is this process spontaneous at
room temperature?
positive, not spontaneous
negative, not spontaneous
positive, spontaneous
negative, spontaneous
How much heat is required to increase the temperature of
this kettle from 23.0 °C to 99.0 °C?
71.6 J
0.0112 J
7.2 × 10⁴ J
1.12 x 10⁻⁵ J
90% of the energy we use on Earth comes originally from
where?
sun
water
wind
the moon
The entities in a nuclear reaction that consist of
Helium atoms are known as __________.
gamma rays
alpha particles
positrons
beta particles
The reaction of Pu-239 with which particle produces a
neutron and Cm-242?
positron
alpha
beta
gamma
The isotope Sr-90 is one of the extremely hazardous species in
the residues from nuclear power generation. The strontium in a
0.500-g sample diminishes to 0.393 g in 10.0 y.

Calculate the half-life.
0.0241 yrs
0.127 yrs
-28.8 yrs
28.8 yrs
adiation harms biological systems by damaging
__________.
metal ions
oxygen compounds
DNA
water molecules
Which type of reaction takes place on the
sun?
fission
isotopic
fusion
combustion
A typical barometric pressure in Redding, California, is about
750 mm Hg.
Calculate this pressure in atm.
1.0 x 10² atm
82 atm
5.7 x 10⁵ atm
0.99 atm
On a very cold day, you notice that your tires look a
bit more deflated than on warmer days. This observation can be
explained by __________.
Amonton’s law
Avogadro’s law
Boyle’s law
Charles’s law
The amount of gas passing through some area per unit
time is called __________.
kinetic molecular theory
mean free path
rate of diffusion
Graham's law of effusion
If the can is thrown into a fire (T = 475 ⁰C), what will
be the pressure in the hot can?
27,757 torr
65 torr
532 torr
3,400 torr
Measuring blood pressure is an application of
__________.
Amonton’s law
Boyle's law
Dalton's Law
Charles's law
The change in state from liquid to solid is called
__________.
freezing
condensation
melting
sublimation
The attraction between identical molecules in a
substance is known as __________.
capillary action
cohesion
adhesion
viscosity
Which type of intermolecular force results from
temporary dipoles that form in neighboring particles?
hydrogen bonding
dispersion
dipole-dipole
electrostatic
If you have a glass containing a 10% sucrose (table
sugar) aqueous solution, which of these is the
solvent?
water
sucrose
glass
both water and sucrose
A solution in which water is the solvent is called a(n)
__________ solution.
colloidal
dilute
alloy
aqueous
If a process occurs under a certain set of conditions,
without requiring an input of energy, it is known as
__________.
soluble
immiscible
spontaneous
saturated
If 1.00 g CsBr is dissolved in 1.600 kg solution, what
is the concentration in ppm?
6.25 x 10⁵ ppm
1.60 x 10⁹ ppm
625 ppm
6.25 x 10⁻¹⁰ ppm
What is the mole fraction of H₃PO₄ in a solution of 14.5
g of H₃PO₄ (97.9952 g/mol) in 125 g of water (18.0153
g/mol)?
0.0209
0.0213
0.104
0.631
Which of these compounds found in coral reefs is
typically insoluble in aqueous solutions, but is soluble in acidic
solutions, and is thus of major concern when it comes to climate
change and ocean acidification?
calcium chloride
magnesium chloride
calcium carbonate
sodium chloride
Which of these is a property of acids?
They accept hydrogen ions.
They taste sour.
They change litmus from red to blue.
They are slippery.
A compound that is defined by its ability to accept a
proton from another compound is known as a(n)
__________.
Lewis base
adduct
Arrhenius base
Brønsted-Lowry base
When Mg(OH)₂ reacts with H₂SO₄, what are the
products?
Mg(OH)₂ and H₂O
MgSO₄ and H₂O
CO₂ and H₂O
MgO and H₂SO₄
alculate the pH of a 0.200 M HCl solution at 25
⁰C.
0.699
5.00 x 10⁻¹⁴
-0.699
13.301
Which of the following must be present with a weak acid
to make a buffer?
conjugate base
strong acid
strong base
acetate
What scientific discipline attempts to understand the
weather in the short-term?
astronomy
geology
meteorology
climatology
Evaporation plays an important role in which of these
cycles?
nitrogen
phosphorus
hydrological
carbon
What is the main pollution source of sulfur
oxides?
vehicles
power plants
uranium
lightning
Unlike oxygen, ozone __________.
is colorless
has an odor
is involved in combustion
is tasteless
Which form of electromagnetic radiation provides warmth
to the earth?
microwaves
ultraviolet
infrared
visible light
Which of the following hydrocarbons are
saturated?
alkynes
alkanes
alkenes
aromatics
The -OH functional group characterizes which family of
organic compounds?
ethers
ketones
carbonyls
alcohols
Which biomolecules are oily or greasy and make up the
main structural component of cell membranes?
nucleic acids
amino acids
carbohydrates
lipids
What class of drugs are fever-reducing?
antimetabolites
NSAIDs
analgesics
antipyretics