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PS final exam review

Total questions: 171

Worksheet time: 4hrs 45mins

Name
Class
Date
1.

substance that is dissolved in the solvent.

a)

solute

b)

solution

c)

acid

d)

base

2.

the liquid in which a solute is dissolved to form a solution.

a)

solvent

b)

solute

c)

acid

d)

base

3.

a chemical solution containing the maximum concentration of a solute dissolved in the solvent.

a)

saturated solution

b)

unsaturated solution

c)

dilute solution

d)

supersaturated solution

4.

a chemical solution in which the solute concentration is lower than its equilibrium solubility

a)

unsaturated solution

b)

saturated solution

c)

dilute solution

d)

supersaturated solution

5.

a solution that contains more of the dissolved material than could be dissolved by the solvent under normal circumstances

a)

supersaturated solution

b)

unsaturated solution

c)

dilute solution

d)

saturated solution

6.

a molecule or ion capable of donating a proton; that has a sour taste

a)

acid

b)

base

c)

solute

d)

solvent

7.

a substance that feels slippery, tastes bitter; OH

a)

base

b)

acid

c)

solvent

d)

solute

8.

the force exerted per unit area.

a)

pressure

b)

force

c)

power

d)

work

9.

any substance whose molecules will slide past each other

a)

fluid

b)

liquid

c)

solution

d)

solvent

10.

the ability or tendency to float in water or air or some other fluid.

a)

buoyancy

b)

force

c)

pressure

d)

power

11.

Salt has which type of bonds

a)

covalent bond

b)

Hydrogen bond

c)

Ionic bond

d)

Metallic bonds

12.

Identify the type of reaction: A + B-----> AB

a)

combustion

b)

synthesis

c)

decomposition

d)

single-displacement

13.

Identify the type of this reaction: AX + B ---->BX + A

a)

combustion

b)

decomposition

c)

double displacement

d)

single displacement

14.

Most reactions go faster at a higher temperature

a)

True

b)

False

15.
A mixture that is so evenly mixed you can't see the parts.  Such as Kool-Aid
a)
Homogeneous Mixture
b)
Heterogeneous Mixture
c)
Pure Substance
16.

a change in size, shape, or state of matter

a)

physical change

b)

physical property

c)

chemical change

d)

chemical property

17.
__________ is any thing that takes up space.
a)
Mass
b)
Matter
c)
Volume
d)
Length
18.
The following are examples of solids except
a)
syrup
b)
text book
c)
desk
d)
lunchbox
19.
the central region of an atom where its neutrons and protons are is its 
a)
nucleus 
b)
electron cloud
c)
core 
d)
center 
20.
How many protons does this atom have?
a)
2.5
b)
6
c)
5
d)
10.811
21.
Which number here is my atomic number?
a)
5
b)
10.811
22.
What 2 subatomic particles combine to make up the atomic mass?
a)
Protons, Jimmy Neutrons
b)
Protons, Neutrinos
c)
Protons, Electrons
d)
Neutrons, Protons
23.
Which 2 groups of elements would be the most reactive and why?
a)
Noble Gases and Loose Cannons; because I said so. 
b)
Noble Gases and Halogens; because they're so fancy they already know. 
c)
Alkali Earth metals and Alkali metals; because nothing beats heavy metal
d)
Group 1 Metals and Halogens.  
Alkali metals need to lose 1 electron to gain a full outer shell. 
The halogens need to gain 1 electron to gain a full outer shell.
24.
Which group of elements would be the most stable and why?
a)
Noble Gases (have a full octet)
b)
Noble Gases (but they'll never be Royals)
c)
Halogens (because they glow in the dark)
d)
Transition Metals (because they're flexible)
25.
In order to become stable, do metals gain or lose electrons?
a)
Gain
b)
Lose
26.
What happens to the charge on a nonmetal when it becomes ionized?
a)
It becomes more positive
b)
It becomes more negative 
27.
How many Protons, Electrons and Neutrons does Oxygen – 15 have?
a)
6 of every subatomic particle
b)
8 protons, 8 neutrons, 7 electrons
c)
8 protons, 7 neutrons, 8 electrons
d)
8 protons, 7 neutrons, 7 electrons
28.
What do these isotopes of carbon all have in common?
a)
neutrons & mass number
b)
atomic number and neutrons
c)
atomic number and electrons
d)
protons, atomic number, and mass number
29.

Which of these substances have the LOWEST specific heat?

a)

aluminum

b)

iron

c)

copper

d)

tin

30.

Energy changes from chemical to thermal when....

a)

steam makes a piston move

b)

coal burns and heats up water

c)

glow sticks light up

d)

liquid water converts into steam

31.

What are the gray particles in the image of an atom?

a)

dust

b)

protons

c)

neutrons

d)

electrons

32.

What is the term used to label the number of protons in the nucleus?

a)

pi

b)

atomic number

c)

number 1 teacher

d)

mass number

33.

How many protons in strontium?

a)

38

b)

88

c)

50

34.
The form (solid, liquid, or gas) that matter has is the _____.
a)
compound
b)
natural element
c)
atomic mass
d)
states of matter
35.
What is used to order elements on the periodic table?
a)
atomic mass
b)
atomic number
c)
whether it is a metal or nonmetal
d)
alphabetical order by element name
36.
A tiny particle in the nucleus of an atom that is about the same size as a proton is a(n) ___.
a)
electron
b)
neutron
c)
solid
d)
element
37.
Mass, size, and color are examples of ____.
a)
liquids
b)
density
c)
properties
d)
Maggie
38.
What kind of properties can only be observed when a substance changes into a different substance?
a)
physical properties
b)
chemical properties
c)
liquid properties
d)
real properties
39.
An example of evaporation would be?
a)
an ice cube melting 
b)
Rain drops
c)
Steam rising from a pot
d)
Making water into ice 
40.
Which state of matter is described as having fast-moving high energy particles that are far apart?
a)
solid
b)
liquid
c)
gas
d)
Ohio
41.
What is happening at freezing point?
a)
gas to liquid
b)
solid to liquid
c)
liquid to solid
d)
liquid to gas
42.
What is happening at the boiling point?
a)
liquid to gas
b)
gas to liquid
c)
solid to liquid
d)
liquid to solid
43.
Is hammering wood together to build a house a chemical or physical change?
a)
chemical
b)
physical
44.
Is burning wood a chemical or physical change?
a)
chemical
b)
physical
45.
All elements are composed of extremely small particles called
a)
compounds
b)
mixtures
c)
atoms
d)
molecules
46.

substances that go into a reaction

a)

reactants

b)

products

c)

solutes

d)

solvents

47.

substance that is formed as the result of a chemicalreaction

a)

product

b)

reactant

c)

solute

d)

solvent

48.

a type of reaction in which multiple reactants combine to form a single product.

a)

synthesis

b)

decomposition

c)

double replacement

d)

single replacement

49.

a type of chemical reaction in which a single compound breaks down into two or more elements or new compounds.

a)

decomposition

b)

synthesis

c)

single replacement

d)

double replacement

50.

a type of chemical reaction where two compounds react, and the positive ions (cation) and the negative ions (anion) of the two reactants switch places, forming two new compounds or products.

a)

double replacement

b)

single replacement

c)

decomposition

d)

synthesis

51.

a type of chemical reaction where an element reacts with a compound and takes the place of another element in that compound

a)

single replacement

b)

double replacement

c)

synthesis

d)

decomposition

52.

a major class of chemical reactions, commonly referred to as "burning; occurs when a hydrocarbon reacts with oxygen to produce carbon dioxide and water

a)

combustion

b)

synthesis

c)

single replacement

d)

decomposition

53.

chemical reaction that releases energy through light or heat

a)

exothermic

b)

endothermic

c)

combustion

d)

decomposition

54.

any chemical reaction that absorbs heat from its environment

a)

endothermic

b)

exothermic

c)

decomposition

d)

combustion

55.

The law of conserved energy states that energy is the same before and after a reaction

a)

Forward

b)

Downward

c)

Conserved

d)

Fluid Friction

56.

Define Isotopes:

a)

Different number of protons and neutrons

b)

The resistance of any object to change in its velocity

c)

Same number of protons and neutrons

d)

Force that causes an object to continue in a circle

57.

Chemical energy is:

a)

The resistance of any physical object to a change in its velocity

b)

Same number of protons and neutrons

c)

A force that causes an object to continue in a circle

d)

energy stored in bonds

58.

2 or more elements combined.

a)

element

b)

alloy

c)

mixture

d)

compound

59.

2 or more things physically combined and can be separated physically.

a)

element

b)

alloy

c)

compound

d)

mixture

60.

mixture of 2 metals

a)

mixture

b)

alloy

c)

compound

d)

element

61.

only one type of atom

a)

element

b)

alloy

c)

compound

d)

mixture

62.

Which characteristic of water describes its overall charge?

a)

property of cohension

b)

property of adhesion

c)

being polar

d)

high specific heat

63.

What causes thermal expansion?

a)

When the temperature drops

b)

When particles of matter move farther apart as temperature increases

c)

When particles are compressed

64.

How are the processes of melting and freezing similar?

a)

They are both processes that physically change a substance.

b)

They are both processes that chemically change a substance.

c)

They are both processes where heat is released by a substance.

d)

They are both processes where heat is absorbed by a substance.

65.

Four different liquids will be separately poured into a single beaker. The liquids are ethanol, milk, oil, and water. The density for each liquid at room temperature is listed in the table below. How will the liquids be arranged from bottom to top in the beaker?

a)

milk, water, oil, ethanol

b)

milk, water, ethanol, oil

c)

water, milk, oil, ethanol

d)

water, oil, ethanol, milk

66.

How many valence electrons are in a neutral atom of nitrogen (N)?

a)

2

b)

3

c)

5

d)

15

67.

Electrons are being shared between atoms in a certain compound. Which elements could most likely form this compound?

a)

lithium (Li) and fluorine (F)

b)

aluminum (Al) and iodine (I)

c)

sulfur (S) and oxygen (O)

d)

iron (Fe) and chlorine (Cl)

68.

What is the chemical formula for magnesium acetate?

a)

Mg2(C2H3O2)2

b)

Mg(C2H3O2)2

c)

Mg2C4H6O4

d)

MgC4H6O4

69.

Which represents a balanced chemical equation?

a)

CO2 + 2H2O → 2CH4 + 2O2

b)

CH4 + O2 → CO2 + H2O

c)

CH4 + 2O2 → CO2 + 2H2O

d)

CO2 + H2O → CH4 + O2

70.

What type of chemical reaction occurs when beryllium (Be) combines with oxygen (O2) to form beryllium oxide (BeO)?

a)

double replacement

b)

single replacement

c)

decomposition

d)

synthesis

71.

Which equation represents a neutralization reaction?

a)

acid + water → salt + base

b)

acid + base → water + salt

c)

acid + salt → base + water

d)

water + base → salt + acid

72.

Which compound contains ionic bonds?

a)

C2H6

b)

PCl5

c)

Ca3N2

d)

SF2

73.

This unbalanced equation represents a chemical reaction: Pb(NO3)2 + NaI → NaNO3 + PbI2. What is the coefficient for NaI once the equation is balanced?

a)

1

b)

2

c)

3

d)

4

74.
Which substance is most likely classified as a colloid?
a)
soft drink
b)
oxygen gas
c)
water
d)
fog
75.
Atoms of which two elements will form an ionic bond?
a)
Mg and Cl
b)
N and O
c)
Fe and Co
d)
Rb and Al
76.
Which compound will most likely be formed when lithium (Li) and nitrogen (N) are chemically combined?
a)
LiN
b)
Li3N
c)
LiN3
d)
Li3N3
77.
Which compound results from covalent bonding?
a)
NH4Cl
b)
K2SO4
c)
NaCl
d)
CO2
78.
Which equation represents a decomposition chemical reaction?
a)
2S + 3O2 → 2SO3
b)
2NaCl → 2Na + Cl2
c)
2K + 2H2O   → 2KOH + H2
d)
Zn + 2HCl →      ZnCl2 + H2
79.
This unbalanced equation represents a chemical reaction:
HgO → Hg + O2
Which is the correctly balanced chemical equation for this reaction?
a)
HgO → Hg + 2O2
b)
2HgO → Hg + O2
c)
2HgO → Hg + 2O2
d)
2HgO → 2Hg + O2
80.
An atom has 29 protons, 29 electrons, and 35 neutrons.  What is the mass number of the atom?
a)
29
b)
35
c)
64
d)
93
81.
How many protons and neutrons are there in an atom of Boron if it has an atomic number of 5 and a mass of 11?
a)
5 protons, 6 neutrons
b)
5 protons, 11 neutrons
c)
11 protons, 5 neutrons
d)
11 protons, 6 neutrons
82.
Which pair of elements has the most physical and chemical properties in common?
a)
Ge and Se
b)
K and Kr
c)
Al and Ga
d)
Ba and Bi
83.
Which accounts for most of the mass of an atom?
a)
electrons
b)
protons
c)
neutrons and protons
d)
electrons and neutrons
84.
Which describes an atom with an atomic number of 9?
a)
10 protons, 9 neutrons
b)
9 protons, 10 neutrons
c)
4 protons, 5 neutrons
d)
3 protons, 3 neutrons
85.
Which best represents how electrons are arranged in the energy levels of a carbon atom?
a)
1 electron in first energy level, 5 electrons in the second energy level
b)
2 electrons in first energy level, 4 electrons in the second energy leve
c)
3 electrons in first energy level, 3 electrons in the second energy leve
d)
4 electron in first energy level, 2 electrons in the second energy leve
86.
Which element has the same number of valence electrons as Krypton (Kr)?
a)
Neon (Ne)
b)
Fluorine (F)
c)
Chlorine (Cl)
d)
Selenium (Se)
87.
Which statement best describes the atoms of elements that form compounds by covalent bonding?
a)
they share electrons between them
b)
they have a large difference in atomic number
c)
they are in the same period in the periodic table
d)
they have a large difference in valence electron number
88.
An element located in group 18 and period 4 would be classified as which type of substance?
a)
a halogen
b)
a metalloid
c)
a lanthanoid
d)
a nonmetal
89.
How can two different nonmetals form a compound?
a)
by sharing electrons
b)
by sharing protons
c)
by transferring protons
d)
by transferring electrons
90.
What is the chemical formula for magnesium hydroxide?
a)
Mg(OH)2
b)
MgOH
c)
MgOH2
d)
Mg2OH
91.
What is the correct name for the compound NaNO3?
a)
sodium nitrate
b)
sodium nitrous acid
c)
sodium nitrogen oxide
d)
sodium nitrogen trioxide
92.

A substance formed from two or more elements in which the exact combination of elements is always the same is a(n)

a)

mixture.

b)

element.

c)

solution.

d)

compound.

93.

Which particle of an atom surrounds the nucleus and has a charge of 1-?

a)

proton

b)

neutron

c)

quark

d)

electron

94.

A mixture in which different materials are unevenly distributed and are easily identified is

a)

homogeneous.

b)

heterogeneous.

c)

hemophilia.

d)

homosapien.

95.

A solid, liquid, or gas that contains two or more substances blended evenly throughout is

a)

homogeneous.

b)

heterogeneous.

c)

hemophilia.

d)

homosapien.

96.

An element that is typically a hard, shiny solid, is malleable, ductile, and a good conductor of heat and electricity is a

a)

metal.

b)

nonmetal.

c)

metalloid.

d)

synthetic.

97.

An element that is typically a gas or brittle solid at room temperature, is not malleable or ductile, is a poor conductor of heat and electricity, and is not shiny is a

a)

metal.

b)

nonmetal.

c)

metalloid.

d)

synthetic.

98.

An element that shares some of the properties with metals and some with nonmetals is a

a)

metal.

b)

nonmetal.

c)

metalloid.

d)

synthetic.

99.

A neutral particle found inside the nucleus of an atom is a(n)

a)

proton.

b)

electron.

c)

neutron.

d)

quark.

100.

Any change in size, shape or state of matter is a

a)

chemical change.

b)

miracle.

c)

physical change.

d)

sublimation.

101.

Any characteristic of matter that you can observe without changing the identity of the material is a

a)

physical property.

b)

chemical property.

c)

characteristic.

d)

identifier.

102.

The amount of force exerted per unit area is

a)

volume.

b)

buoyancy.

c)

pressure.

d)

velocity.

103.

A fluid's resistance to flow is

a)

viscosity.

b)

velocity.

c)

surface tension.

d)

density.

104.

Which of the following is NOT an element?

a)

water

b)

oxygen

c)

carbon

d)

nitrogen

105.

Which of the following is an example of a chemical change?

a)

boiling

b)

evaporation

c)

melting

d)

burning

106.

How would you classify the color of a rose?

a)

chemical change

b)

chemical property

c)

physical change

d)

physical property

107.

How could you separate salt from seawater?

a)

filtering

b)

distillation

c)

Tyndall effect

d)

melting

108.

What is the most common state of matter in the universe?

a)

solid

b)

liquid

c)

gas

d)

plasma

109.

Which of the following uses Pascal's principle?

a)

aerodynamics

b)

buoyancy

c)

hydraulics

d)

changes of state

110.

Which of the following uses Bernoulli's principle?

a)

airplane

b)

skateboard

c)

piston

d)

snowboard

111.

Which of the principle tells us that the buoyant force is equal to the weight of the fluid displaced?

a)

Archimedes'

b)

Charles's

c)

Bernoulli's

d)

Pascal's

112.

Which law tells us that as the temperature of a gas increases, the volume increases?

a)

Newton's

b)

Archimedes'

c)

Boyle's

d)

Charles's

113.

In which state of matter are most of the elements to the left of the stair-step line in the periodic table?

a)

gas

b)

plasma

c)

liquid

d)

solid

114.

Which of the following is NOT found in the nucleus of an atom?

a)

proton

b)

electron

c)

neutron

d)

quark

115.

The atomic number of Re is 75. The mass of one of its isotopes is 186. How many neutrons are in an atom of this isotope?

a)

75

b)

186

c)

111

d)

261

116.

Because electrons move freely in metals, which property describes metals?

a)

brittle

b)

dull

c)

soft

d)

conductors

117.

Which set of elements makes up the most reactive group of all metals?

a)

iron triad

b)

alkali metals

c)

coinage metals

d)

alkaline earth metals

118.

Which elements are least reactive?

a)

metals

b)

noble gases

c)

halogens

d)

alkali metals

119.

Which of these elements is the main component of steel and the most widely used of all metals?

a)

iron

b)

aluminum

c)

cadmium

d)

magnesium

120.

Which element is present in ALL organic (living) compounds?

a)

silicon

b)

carbon

c)

oxygen

d)

nitrogen

121.

In the chemical reaction HCl + NaOH --> H2O + NaCl, the reactants are

a)

HCl & H2O

b)

NaOH & NaCl

c)

HCl & NaOH

d)

H2O & NaCl

122.

In the chemical reaction HCl + NaOH --> H2O + NaCl, the products are

a)

HCl & H2O

b)

NaOH & NaCl

c)

HCl & NaOH

d)

H2O & NaCl

123.

The chemical formula for water is

a)

HCl

b)

NaOH

c)

H2O

d)

NaCl

124.

In the following chemical equation, what coefficient should be placed in the blank to balance the chemical equation?

3C + ___H2 --> C3H8

a)

4

b)

3

c)

8

d)

1

125.

In the following chemical reaction, what coefficient should be placed in the blank to balance the chemical equation?

Y(NO3)2 + GaPO4 --> YPO4 + ___Ga(NO3)2

a)

6

b)

2

c)

3

d)

1

126.

Which of the following is the property of colloids to scatter light?

a)

Flitering

b)

Distillation

c)

Freezing

d)

Tyndall effect

127.

Most reactions go faster at a higher temperature

a)

True

b)

False

128.
Oxygen’s atomic number is 8. This means that an oxygen atom must have
a)
8 electrons
b)
8 protons
c)
8 neutrons
d)
a mass number of 8
129.
Which statement best describes an electron?
a)
Smaller mass than a proton and a negative charge
b)
Smaller mass than a proton and a positive charge
c)
Greater mass than a proton and a negative charge
d)
Greater mass than a proton and a positive charge
130.

What can you do to find the number of neutrons in an atom?

a)

It's the same as the atomic #.

b)

Ask Sierra!

c)

Subtract the atomic # (protons) from the mass # (protons and neutrons)

d)

Multiply the mass # (protons and neutrons) and the atomic # (protons)

131.
Lithium is located in Group 1 of the Periodic Table, which element has similar characteristics of Lithium?
a)
Cesium (Cs)
b)
Beryllium (Be)
c)
Neon (Ne)
d)
Magnesium (Mg)
132.
Each row in a periodic table is called a 
a)
Group
b)
Period
c)
Row
d)
Column
133.
Each column in the periodic table is called a 
a)
period
b)
group
c)
cluster
d)
unit
134.
Which group of the periodic table is composed of inert (not reactive)  gases?
a)
alkali metals
b)
alkaline earth metals
c)
halogens
d)
noble gases
135.
The atoms along the staircase are called 
a)
metals
b)
nonmetals
c)
metalloids
d)
noble gases
136.

Fe is the ___________________ for iron

a)

atomic number

b)

chemical symbol

c)

atomic mass

d)

protons

137.

What element contains 53 protons?

a)

Manganese

b)

Iodine

c)

Palladium

138.

What do atoms look like in a solid?

a)
b)
c)
139.

What do atoms look like in a gas?

a)
b)
c)
140.

What do atoms look like in a liquid?

a)
b)
c)
141.
What is the term for combining 2 or more atoms together?
a)
atoms
b)
elements
c)
molecules
d)
compounds
142.

a grouping of elements based on similar properties, arranged by columns in the periodic table; also known as a group

a)

family

b)

period

c)

row

d)

isotope

143.

Who invented the Periodic Table?

a)

Mendeleev

b)

Bohr

c)

Lewis

d)

Democritus

144.

As you move left to right on a row or period what happens?

a)

Atomic number increases by 1

b)

Electrons decrease

c)

Number of shells decrease

d)

Nothing

145.

Valence means......

a)

inside

b)

outside

c)

full

146.

Elements in the same group or column have the same ...

a)

# of valence electrons

b)

# of shells

c)

# of protons

d)

Mass Number

147.
Which of these is a property of metals?
a)
It's malleable
b)
It can't conduct electricity
c)
They are used in food
d)
It's very brittle
148.
What are the three major categories of the periodic table?
a)
Alpha, Beta & Gamma
b)
Metals, Non-Metals and Metalloids
c)
Metals, Semi-metals and Metalloids
d)
Non-Metals, Semi-Metals and Metalloids
149.

Where are metals located on the periodic table?

a)

On the left of the stair case

b)

On the stair case

c)

On the right of the stair case

150.

Where are metaloids located on the periodic table?

a)

On the left of the stair case

b)

On the stair case

c)

On the right of the stair case

151.
What line segment represents only the solid state?
a)
A-B
b)
B-C
c)
C-D
d)
D-E
152.
In which segment is the kinetic energy remaining constant?
a)
A-B
b)
B-C
c)
C-D
d)
E-F
153.
What state(s) of matter are present at D-E?
a)
Solid-liquid
b)
Liquid
c)
Liquid-gas
d)
Gas-Solid
154.
Between which points is the substance changing state?
a)
A-B only. 
b)
A-B, C-D, E-F
c)
B-C only. 
d)
B-C, D-E
155.
Which of the following is a physical change?
a)
Burning
b)
Rusting
c)
Cooking
d)
Cutting
156.
Glass shattering
a)
Physical Change
b)
Chemical Change
157.
Salt
a)
Heterogeneous
b)
Homogeneous
158.
Bicycle rusting
a)
Physical Change
b)
Chemical Change
159.
Lucky Charms
a)
Homogeneous
b)
Heterogeneous
160.
No Definite Shape and No Definite Volume
a)
Gas
b)
Liquid
c)
Solid
161.
No definite shape, but has a definite volume
a)
Gas
b)
Liquid
c)
Solid
162.
The change of state from a liquid to a solid
a)
freezing
b)
melting
c)
evaporation
d)
boiling
163.
Change of state from a solid to a liquid.
a)
sublimation
b)
deposition
c)
freezing
d)
melting
164.
What is the change of state from a gas to a liquid called?
a)
deposition
b)
sublimation
c)
evaporation
d)
condensation
165.
Change of state from a solid directly to a gas is called
a)
deposition
b)
melting
c)
evaporation
d)
sublimation
166.
How many protons are in Zirconium (Zr) ?
a)
40
b)
91
c)
30
d)
65
167.
Which element has 5 valence electrons and 4 energy level?
a)
arsenic
b)
zirconium
c)
antimony
d)
hydrogen
168.

Which of the following is an example of a chemical change?

a)

water freezes to form ice

b)

sugar dissolves in water

c)

gasoline burns in a car engine

d)

a piece of metal expands when it is heated

169.

When making sweet tea, the water acts as the...

a)

Solvent

b)

Solute

c)

Solution

d)

Substance

170.

If a solution has the exact amount of solute that can be dissolved at that temperature then it is considered a ______ solution

a)

Unsaturated

b)

Saturated

c)

Supersaturated

171.

Bases are substances that release hydroxide ions.

a)

True

b)

False

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