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Worksheets

chem final

Total questions: 191

Worksheet time: 4hrs 57mins

Name
Class
Date
1.

Isotopes are atoms of the same element that have different ...?

a)

neutrons

b)

charges

c)

numbers of electrons

d)

atomic numbers

2.

What is the unit of atomic mass?

a)

kg

b)

g

c)

lb

d)

amu

3.

What is atomic mass?

a)

total number of electrons of an element

b)

total number of protons and neutrons of an element

c)

the average atomic mass of an element

d)

the total number of protons of an element

4.

What is the atomic mass of uranium-238?

a)

92

b)

146

c)

238

d)

8

5.

What is the number of neutrons in this atom?

a)

35

b)

17

c)

18

d)

52

6.

Isotopes are atoms of the same element that have different ...?

a)

neutrons

b)

charges

c)

numbers of electrons

d)

atomic numbers

7.

how many valence electron does this atom have?

a)

1

b)

2

c)

3

d)

7

8.

X atom has 10 proton and 11 neutron. How many electron does it have?

a)

10

b)

11

c)

12

d)

13

9.

what is the charge of an atom

a)

0

b)

1

c)

2

d)

3

10.

You found an atom with 6 protons in its nucleus. What is the element of this atom?

a)

Helium

b)

Carbon

c)

Berilium

d)

Chlorine

11.

Z atom has 11 protons, 10 neutron and 11 electrons. what is its proton number?

a)

11

b)

10

c)

21

d)

22

12.

an atom has 10 electrons and 8 neutrons. How many protons does it have?

a)

8

b)

18

c)

10

d)

2

13.

What information does the mass number of an atom provide?

a)

The number of protons in the nucleus

b)

The total number of protons and neutrons in the nucleus

c)

The total number of protons and electrons

d)

The number of neutrons only

14.

Neutrons do not affect the overall charge of the atom.

a)

agree

b)

disagree

15.

If there are more _________ than electrons, the atom is positively charged.

a)

protons

b)

neutrons

c)

electrons

16.

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

a)

Density

b)

odor

c)

Ability to explode

d)

Boiling point

17.

Which of the following is an example of a physical property?

a)

The color of something

b)

Combustion

c)

Chemical reaction

d)

flammability

18.

Is a a rusting bicycle a chemical or physical change?

a)

Chemcial

b)

Physical

19.

Is hammering wood together to build a house a chemical or physical change?

a)

Chemical

b)

Physical

20.

When you break a cracker into pieces it is a...

a)

Chemical change

b)

Physical change

21.

Rust on an iron bar is an example of chemical change.

a)

True

b)

False

22.

Fizzing, foaming, and burning are all examples of

a)

Chemical change

b)

Physical change

23.

Change in density is a physical change.

a)

True

b)

False

24.

Change in color is a physical change.

a)

True

b)

False

25.
Which of these is a result of a physical change?
a)
A new odor
b)
A new gas
c)
A new chemical substance
d)
A solution
26.
Which of these is a result of a chemical change?
a)
A mixture
b)
A solution
c)
A new substance
d)
Melting or freezing
27.
Which of these does NOT happen during a chemical change?
a)
Atomic bonds are formed or break apart
b)
New substance(s) are formed with different chemical properties
c)
The number of atoms in the reaction stays the same
d)
The chemical properties of the beginning substance(s) are the same as those of the end product(s)
28.
Is glass breaking a chemical or phyiscal change?
a)
chemical
b)
physical
29.

What is the outcome of all chemical changes when two substances are combined?

a)

A new substance forms with identical properties.

b)

The two substances release an odor.

c)

The two substances change color.

d)

A new substance forms with different properties.

30.

Which laboratory activity involves a chemical change?

a)

boiling saltwater for several minutes until only solid salt remains

b)

extracting iron filings from a sand mixture using a magnet

c)

leaving a copper penny in vinegar until it turns green

d)

crushing a rock with a hammer to extract mineral deposits

31.

Which event always involves a chemical change?

a)

boiling

b)

melting

c)

conducting

d)

burning

32.

Which statement best describes what happens during a chemical change?

a)

Some properties of a substance change, but its identity remains the same.

b)

Both the identity and the properties of a substance change.

c)

The chemical properties of a substance change, but its physical properties remain the same.

d)

The physical properties of a substance change, but its chemical properties remain the same.

33.

Which characteristic of a substance is considered a chemical property?

a)

its boiling point

b)

its reactivity

c)

its density

d)

its conductivity

34.

Which scenario is an example of a physical change?

a)

Wood is burned in a campfire and is turned into ash and smoke.

b)

A piece of metal is left in the rain and forms rust.

c)

Lead is melted into a liquid to form pellets.

d)

Yeast turns sugar into energy, water, and carbon dioxide gas.

35.
A change in which NEW substances are formed.
a)
Chemical change
b)
Physical change
c)
Casual change
d)
Formal change
36.
Which of the following is NOT an example of chemical change?
a)
sour milk
b)
burning wood
c)
breaking a pencil
d)
rust
37.

Which is an example of colloid solution?

a)

Water

b)

Milk

c)

Salt solution

d)

Sugar solution

38.

What are the properties of homogenous mixture?

a)

The particles are uniformly distibuted

b)

Solute particles are suspended

c)

Tyndall effect is not seen

d)

Tyndall effect is seen

e)

Cannot be separated by physical method

39.

Which is the experimental setup in the below image?

a)

Distillation process

b)

Sublimation process

c)

boiling process

d)

Sedimentation

40.

The component of the solution that is dissolved in the solvent (usually present in lesser quantity) is called (a)  

41.
Sugar water is a 
a)
solution
b)
suspension
c)
colloid
42.
type of mixture that doesn't separate on its own but still contains undissolved particles
a)
solution
b)
colloid
c)
suspension
43.

Air is homogenous mixture

a)

True

b)

False

44.

A _____________ contains a variety of elements and compounds that are not chemically combined with each other.

a)

compound

b)

element

c)

molecule

d)

mixture

45.

A ______________ is made up of different kinds of atoms chemically combined.

a)

element

b)

compound

c)

mixture

d)

molecule

46.

A __________________ is a substance that has definite physical and chemical properties such as appearance, melting point, and reactivity.

a)

mixture

b)

pure substance

c)

compound

d)

element

47.

In a ______________, one substance is dissolved in another substance.

a)

solution

b)

suspension

c)

colloid

48.

Coffee, mouthwash, and vinegar are examples of __________________ mixtures.

a)

heterogeneous

b)

homogeneous

c)

pure

49.

In a salt solution, what is the solute?

a)

The water

b)

The salty water

c)

The salt

50.

Is water an element, compound or mixture?

a)

Element

b)

Compound

c)

Mixture

51.

Methane contains one atom of carbon and four atoms of hydrogen that are chemically bonded. It is a main component of natural gas. Methane is a ___________________ .

a)

pure substance

b)

mixture

52.

In the chemical formula C12H22O11C_{12}H_{22}O_{11}  , how many elements are there?

a)

1

b)

2

c)

3

d)

4

53.

In the chemical formula C12H22O11C_{12}H_{22}O_{11}  , how many C atoms are there?

a)

12

b)

22

c)

11

d)

45

54.

How does a balanced chemical equation satisfy the Law of Conservation of Mass?

a)

During a chemical reaction, matter is destroyed.

b)

During a chemical reaction, the total number of atoms increases.

c)

 During a chemical reaction, one or more new substances are formed.

d)

During a chemical reaction, the total amount of matter stays the same.

55.

Which of the following substances CANNOT be broken down into simpler substance? ?

a)

NaNa  

b)

H2OH_2O  

c)

C6H12O6C_6H_{12}O_6  

d)

COCO  

56.
Matter can not be created nor destroyed: it can only be
a)
Destroyed a little bit
b)
Invisible
c)
Transformed, changed
d)
None of the above
57.
What is the Law of Conservation of mass?
a)
Mass is created in a chemical reaction
b)
Mass is created in a physical change
c)
New chemicals formed from a chemical reaction have a larger overall mass than the original reactants
d)
Mass is never created or destroyed
58.
Maria fills a bowl with 200 g of water. She puts the bowl of water in the freezer, and the water freezes. Which will most likely be the mass of the frozen water?
a)
50 g
b)
100 g
c)
200 g
d)
400 g
59.
A chemical reaction is balanced when
a)
both sides have the same elements
b)
Both sides have the same  number of atoms
c)
Same subscripts
d)
Same coefficients
60.
Balance this equation
_Al +_HCl --> _H2 +_AlCl3
a)
2, 6, 3, 2
b)
it is already balanced
c)
4, 12, 3, 4
d)
2, 1, 4, 5
61.
Balance this equation-
__P4 + __O2 --> __P2O3
a)
it is already balanced
b)
2, 1, 3
c)
1, 2, 3
d)
1, 3, 2
62.
What does the Law of Conservation of Mass state?
a)
Matter cannot be gained or lost in a chemical reaction.
b)
Matter can only be lost in a chemical reaction.
c)
Matter can only be gained in a chemical reaction.
d)
Matter can be gained and lost in a chemical reaction. 
63.

According to the law of conservation of mass, if a reaction starts with a total 75g of reactants it should produce

a)

a total of 40g of products

b)

a total of 75g of products

c)

a total of 180 g of products

d)

None of the above

64.

An atom that gains or loses an electron becomes

a)

an isotope

b)

a new element

c)

an ion

d)

a molecule

65.

When an atom gains an electron it becomes

a)

negatively charged

b)

positively charged

c)

neurtal

66.

Ionic bonds happen when valence electrons are

a)

shared

b)

too heavy

c)

transferred

67.

Which type of bond occurs between non metals?

a)

covalent bonds

b)

ionic bonds

c)

metallic bonds

d)

all types of bonds

68.

What type of bond forms CaF2

a)

covalent bond

b)

ionic bond

c)

metallic bond

d)

all answers are correct

69.

Which type of bond is creates MgFe?

a)

covalent bond

b)

ionic bond

c)

metallic bond

d)

all the bonds

70.

What is the correct Lewis structure for BF3?

a)
b)
c)
d)

BF3 (The formula is the Lewis Structure)

71.

What is the ionic formula for a bond between Calcium and Phosphorus?

a)

Ca2P3

b)

Ca3P2

c)

Ca2P5

d)

P5Ca2

72.

Covalent bonding is between a

a)

nonmetal and nonmetal

b)

metal and nonmetal

c)

metal and metal

d)

It depends on the situation

73.

Why do atoms bond?

a)

They typically don't bond

b)

To add or take away energy levels

c)

To have a full valance shell.

d)

To have a full inner shell

74.

Typically, atoms are more stable when they are

a)

bonded together

b)

apart from each other

75.

Which is the correct Lewis Structure for oxygen?

a)
b)
c)
d)
76.

Which category of elements usually form negative ions?

a)

metals

b)

nonmetals

c)

metalloids

d)

noble gases

77.

What category of element usually forms a positive ion?

a)

Metals

b)

Nonmetals

c)

metalloids

d)

Noble gases

78.

CaCl2 is an example of what type of bond?

a)

Covalent

b)

Metallic

c)

Ionic

79.
Which naming pattern is unique to polyatomic ionic compounds?
a)
they can have prefixes
b)
they can end in -ide
c)
they can end in -ate
d)
they use Roman Numerals
80.
What is the name of Ca3N2?
a)
calcium nitrogen
b)
carbon nitrogen
c)
calcium nitride
d)
carbon nitrate
81.
Carbon monoxide is a deadly gas produced from incomplete combustion. What type of compound is it?
a)
covalent
b)
simple ionic
c)
polyatomic ionic
d)
multivalent ionic
82.
What type of compound is PdO2?
a)
covalent
b)
simple ionic
c)
polyatomic ionic
d)
multivalent ionic
83.
What is the name of PdO2?
a)
palladium (IV) oxide
b)
palladium oxygen
c)
palladium oxide
d)
palladium (II) oxide
84.
What is the name of Si2Cl6?
a)
disilicon hexachlorine
b)
disilicon hexachloride
c)
silicon hexachloride
d)
silicon chloride
85.
What is the name of NH4Cl?
a)
nitrogen tetrahydrogen chloride
b)
ammonium chlorine
c)
ammonium chloride
d)
ammonium chlorate
86.
What is the name of Mg₃N₂?
a)
manganese nitride
b)
magnesium nitride
c)
magnesium (III) nitride
d)
trimagnesium dinitride
87.

A multivalent metal is one that

a)

Forms multiple ions

b)

Forms +2 ions

c)

Will form positive or negative ions

d)

Can participate in ionic or covalent bonds

88.
The name of Al₂O₃ is
a)
aluminum oxide
b)
aluminum (II) oxide
c)
aluminum (III) oxide
d)
dialuminum trioxide
89.
When naming ionic compounds, the cation is always named first and the anion is always named second.
a)
False
b)
True
90.
name the following ionic compound: NaF
a)
nitrogen fluorine
b)
sodium fluoride
c)
nitrogen fluoride
d)
sodium fluorine
91.

What type of bonding involves sharing electrons?

a)

Ionic

b)

Covalent

c)

Metallic

92.
What two types of atoms make a covalent bond?
a)
2 Nonmetals
b)
1 Nonmetal and 1 Metal
c)
2 Metals
d)
2 Noble Gases
93.
A binary covalent bond exists between
a)
2 metals
b)
1 metal and 1 nonmetal
c)
2 nonmetals
d)
Any 2 elements
94.
The covalent compound N2O5 would be named
a)
nitrogen oxide.
b)
dinitrogen oxide.
c)
nitrogen pentoxide.
d)
dinitrogen pentoxide.
95.

The electrons in a polar covalent molecule are shared...

a)

Evenly

b)

Unevenly

c)

Electrons are not shared

d)

None of the Above

96.

The electrons in a nonpolar covalent molecule are shared...

a)

Evenly

b)

Unevenly

c)

Electrons are not shared

d)

None of the Above

97.

In a polar covalent bond, the electrons gather around...

a)

The atom with the Greatest Electronegativity

b)

The atom with the Lowest Electronegativity

c)

Each atom Equally

d)

None of the Above

98.

In a nonpolar covalent bond, the electrons gather around...

a)

The atom with the Greatest Electronegativity

b)

The atom with the Lowest Electronegativity

c)

Each atom Equally

d)

None of the Above

99.

The polarity of a bond is determined by...

a)

The sum of the electronegativities of the two atoms

b)

The difference in the electronegativities of the two atoms

c)

The charges of the atoms

d)

None of the Above

100.

A diatomic molecule like O2 is always _____ because electrons are shared _____

a)

nonpolar; unequally

b)

polar; equally

c)

nonpolar; equally

d)

polar; unequally

101.

What must the difference in electronegativity between two atoms be in order for the bond between them to be nonpolar covalent?

a)

less than 0.4

b)

greater than 1.7

c)

between 0.4 and 1.7

d)

exactly 0

102.

Order the types of bonds based on the charge of their molecules. (lowest amount of charge to greatest)

a)

Polar Covalent --> Ionic --> Nonpolar Covalent

b)

Ionic --> Nonpolar Covalent --> Polar Covalent

c)

Ionic --> Polar Covalent --> Nonpolar Covalent

d)

Nonpolar Covalent --> Polar Covalent --> Ionic

103.
The most electronegative atom in the periodic table is:
a)
Fluorine
b)
Helium
c)
Neon
d)
Francium
104.

On the pH scale, what value is considered neutral?

a)

lower

b)

higher

c)

7

105.

On the pH scale, a substance with a pH of 4 is

a)

acidic

b)

basic

c)

neutral

106.

Acids have

a)

OH->H+

b)

OH-=H+

c)

OH-<H+

107.

In a polar covalent bond between an N and a H, the electrons would be more attracted to the

a)

N

b)

H

108.

A covalent bond between an O and a H would be

a)

Polar

b)

Nonpolar

109.

A covalent bond between a C and an H would be

a)

polar

b)

Non polar

110.

Which element has a larger radius?

a)

Oxygen (O)

b)

Sulfur (S)

c)

Tellurium (Te)

d)

Polonium (Po)

111.

Which element has a larger radius?

a)

Bromine (Br)

b)

Potassium (K)

c)

Gallium (Ga)

d)

Arsenic (As)

112.

Which has a higher ionization energy?

a)

Hydrogen (H)

b)

Lithium (Li)

c)

Potassium (K)

d)

Cesium (Cs)

113.

Which has a higher ionization energy?

a)

Xenon (Xe)

b)

Rubidium (Rb)

c)

Strontium (Sr)

d)

Iodine (I)

114.

Which element has the highest electronegativity?

a)

Fluorine (F)

b)

Iodine (I)

c)

Bromine (Br)

d)

Chlorine (Cl)

115.

Which element has the highest electronegativity?

a)

Potassium (K)

b)

Titanium (Ti)

c)

Bromine (Br)

d)

Krypton (Kr)

116.
Atomic Radius is...
a)
the relative size of the atom's nucleus
b)
the relative size of the atom's electron cloud
c)
the energy required to shield the outer electrons from the nucleus
d)
a measure of the ability of an atom to attract electrons
117.
As you move down the periodic table atoms get bigger.  This is because ____________.
a)
The atoms have more mass.
b)
The atoms have more protons.
c)
The atoms have more energy levels
d)
The atoms have more nuetrons
118.
As you move across the periodic table atoms tend to get smaller because, ______________.
a)
the atoms have more mass.
b)
the atoms have less mass
c)
the atoms have more protons.
d)
the atoms have less electrons.
119.
Which atom has the largest atomic radius?
a)
potassium
b)
rubidium 
c)
francium
d)
cesium
120.
The atom with the largest atomic radius in Group 18 is - 
a)
Ar
b)
He
c)
Kr
d)
Rn
121.
Which periodic group has the smallest atomic radius?
a)
Alkali metals
b)
Halogens
c)
Noble Gases
d)
Transition metals
122.
Ionization energy is...
a)
the energy required to add an electron to a specific atom
b)
how much energy it takes to remove an electron from an atom
c)
the energy required to shield the outer electrons from the nucleus
d)
a measure of the ability of an atom to attract electrons
123.
Which of the following will have a lower ionization energy than Scandium (Sc)?
a)
Helium (He)
b)
Titanium (Ti)
c)
Calcium (Ca)
d)
Magnesium (Mg)
124.
Which of the following will have a higher ionization energy than arsenic (As)?
a)
Gallium (Ga)
b)
Neon (Ne)
c)
Antimony (Sb)
d)
Germanium (Ge)
125.
Electronegativity is...
a)
how good an atom is at attracting electrons
b)
the ability of an atom to lose electrons
c)
the energy required to remove an electron from a specific atom
d)
how easy it is to make friends. 
126.
Atoms that have a high electronegativity, _______________.
a)
give up their electrons more easily.
b)
hold on to their electrons more tightly.
c)
have more electron shells.
127.
Which of the following will have a higher electronegativity than arsenic (As)?
a)
Carbon (C)
b)
Neon (Ne)
c)
Antimony (Sb)
d)
Germanium (Ge)
128.
As atoms of elements in group 16 are considered in order from top to bottom, the electronegativity of each successive element....
a)
decreases
b)
increases
c)
remains the same
d)
none of the above
129.
The electronegativity of Cl is the highest in Period 2.  Why?
a)
Cl is the largest and has the greatest effective nuclear charge
b)
Cl is the smallest and has the lowest effective nuclear charge
c)
Cl is the largest and has the lowest effective nuclear charge
d)
Cl is the smallest and has the greatest effective nuclear charge
130.
What term is used to describe "an atom's tendency to attract electrons to itself when is is chemically combined with another element"
a)
electronation
b)
electron affinity
c)
electronegativity
d)
electrolysis
131.
What term is used to describe "The energy required to remove an electron from gaseous atoms"
a)
excitation energy
b)
ionization energy
c)
polarization energy
d)
electrolytic energy 
132.
What term is used to describe "A measure of the size of an atom"
a)
chemical reactivity
b)
atomic radius
c)
energy levels
d)
orbit
133.

What is MOLECULAR GEOMETRY of this molecule?

a)

Bent

b)

Trigonal Pyramidal

c)

Tetrahedral

d)

Linear

134.

What is MOLECULAR GEOMETRY of this molecule?

a)

Bent

b)

Trigonal Pyramidal

c)

Tetrahedral

d)

Linear

135.

What is MOLECULAR GEOMETRY of this molecule?

a)

Bent

b)

Trigonal Pyramidal

c)

Tetrahedral

d)

Octahedral

136.

What is MOLECULAR GEOMETRY of this molecule?

a)

Linear

b)

Trigonal Pyramidal

c)

Tetrahedral

d)

Octahedral

137.

What is MOLECULAR GEOMETRY of this molecule?

a)

Linear

b)

Trigonal Pyramidal

c)

Tetrahedral

d)

Octahedral

138.

What is MOLECULAR GEOMETRY of this molecule?

a)

Linear

b)

See-saw

c)

Tetrahedral

d)

Octahedral

139.

What is MOLECULAR GEOMETRY of this molecule?

a)

Linear

b)

See-saw

c)

Square Planar

d)

Octahedral

140.

What is MOLECULAR GEOMETRY of this molecule?

a)

Linear

b)

See-saw

c)

Square Pyramidal

d)

Octahedral

141.

What is MOLECULAR GEOMETRY of this molecule?

a)

Linear

b)

T-Shaped

c)

Square Pyramidal

d)

Octahedral

142.

What is MOLECULAR GEOMETRY of this molecule?

a)

Trigonal Pyramidal

b)

T-Shaped

c)

Square Pyramidal

d)

Octahedral

143.
Choose the correct shape for this molecule:
a)
linear
b)
Trigonal pyramidal
c)
Bent
d)
Tetrahedral
144.
What is the correct formula for this molecule?
a)
NH
b)
N3H
c)
NH3
d)
NH4
145.
What is the VSEPR theory used to predict?
a)
Bond Strength
b)
Polarity
c)
Molecular Shape
d)
Electronegativity
146.

Which best describes a triple bond?

a)

3 shared pairs of electrons

b)

3 shared electrons

c)

a central electron with 3 atoms bonded around it

147.

Describe the shape of the molecule.

a)

linear

b)

bent

c)

trigonal pyramidal

d)

tetrahedral

148.

Describe the shape of the molecule.

a)

linear

b)

bent

c)

trigonal pyramidal

d)

tetrahedral

149.

Describe the shape of the molecule.

a)

linear

b)

bent

c)

trigonal pyramidal

d)

tetrahedral

150.
Choose the correct shape for this molecule:
a)
Trigonal planar
b)
Trigonal pyramidal
c)
Tetrahedral
d)
Linear
151.
Choose the correct shape for this molecule:
a)
Trigonal planar
b)
Trigonal pyramidal
c)
Bent
d)
Linear
152.
Choose the correct shape for this molecule:
a)
linear
b)
Trigonal pyramidal
c)
Bent
d)
Tetrahedral
153.
Choose the correct shape for this molecule:
a)
linear
b)
Trigonal pyramidal
c)
Bent
d)
Tetrahedral
154.
Choose the correct shape for this molecule:
a)
Tetrahedral
b)
Trigonal pyramidal
c)
Bent
d)
Trigonal planar
155.
Choose the correct shape for this molecule:
a)
Bent
b)
Trigonal pyramidal
c)
Tetrahedral
d)
Trigonal planar
156.
Choose the correct shape for this molecule:
a)
Bent
b)
Linear
c)
Tetrahedral
d)
Trigonal pyramidal
157.

What geometry will this molecular structure have? PH3

a)

bent

b)

tetrahedral

c)

linear

d)

trigonal pyramidal

158.

What geometry will this molecular structure have? H2S

a)

bent

b)

tetrahedral

c)

linear

d)

trigonal pyramidal

159.

What geometry will this molecular structure have?

a)

trigonal pyramid

b)

linear

c)

bent

d)

angular

160.

Is this molecule polar or non-polar?

a)

Non-polar

b)

Polar

161.

Is this molecule polar or non-polar?

a)

Non-polar

b)

Polar

162.
The bond angle for a trigonal planar molecule is 
a)
90 Degrees
b)
109.5 Degrees
c)
120 Degrees
d)
180 Degrees
163.
What is the measure of a tetrahedral bond angle?
a)
90 Degrees
b)
109.5 Degrees
c)
120 Degrees
d)
180 Degrees
164.
Which of the following shapes has unshared pairs of electrons on the central atom? 
a)
Bipyramidal
b)
Bent
c)
Trigonal Planar
d)
Tetrahedral
165.
Which molecule would have this shape?
a)
BF3
b)
CH4
c)
PCl5
d)
CO2
166.
Which of the following molecular shapes would have a bond angle of 180 Degrees?
a)
Bent
b)
Trigonal Planar
c)
Tetrahedral
d)
Linear
167.
The bond angle for a trigonal planar molecule is 
a)
90 Degrees
b)
109.5 Degrees
c)
120 Degrees
d)
180 Degrees
168.

Four substances were tested for pH, lemon juice (pH 2), baking soda (pH 9), bleach (pH 12), and milk (pH 6). Which of the following correctly lists the substances from most basic to acidic?

a)

lemon juice, milk, baking soda, bleach

b)

bleach, baking soda, milk, lemon juice

c)

milk, lemon juice, baking soda, bleach

d)

baking soda, bleach, lemon juice, milk

169.

Which of these is a property of acidic solutions?

a)

they taste sour

b)

they feel slippery

c)

they are in many cleaning products

d)

they taste bitter

170.

Acids are substances that release positively charges (a)   ions in water

171.

Bases turn red litmus paper (a)   .

172.

The (a)   scale measures the strength of acids and bases.

173.

Black coffee has a pH of 5. It is a ________ ____________

a)

Weak

b)

Strong

c)

Acid

d)

Base

174.

pH 3

a)

Weak

b)

Strong

c)

Acid

d)

Base

175.

pH 14

a)

Weak

b)

Strong

c)

Acid

d)

Base

176.

pH 9

a)

Weak

b)

Strong

c)

Acid

d)

Base

177.

A sugar solution does not change the color of both blue and red litmus paper. This means the sugar solution is a ________.

a)

acid

b)

base

c)

neutral

178.

What type of reation occurs between an acid and a base?

a)

Combustion

b)

Synthesis

c)

Neutralization

d)

Double Replacement

179.

What are the products of a neutralization reactions

a)

water

b)

salt

c)

acid

d)

base

180.
Litmus turns blue in this.
a)
Base
b)
Acid
c)
Both
181.
Phenolphthalein turns clear in this.
a)
Base
b)
Acid
c)
Both
182.
Produces hydroxide.
a)
Base
b)
Acid
c)
Both
183.
Is often slippery or slimy
a)
Base
b)
Acid
c)
Both
184.
Produces hydrogen.
a)
Base
b)
Acid
c)
Both
185.
Does not react with metals
a)
Base
b)
Acid
c)
Both
186.
Phenolphthalein turns pink in this.
a)
Base
b)
Acid
c)
Both
187.
Stings in cuts.
a)
Base
b)
Acid
c)
Both
188.
Litmus turns red in this.
a)
Base
b)
Acid
c)
Both
189.
Often tastes sour.
a)
Base
b)
Acid
c)
Both
190.
Reacts with metals
a)
Base
b)
Acid
c)
Both
191.
Looks like water
a)
Base
b)
Acid
c)
Both

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