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Acids, Bases, pH, and Law of C.O.M.

Total questions: 60

Worksheet time: 53mins

Name
Class
Date
1.
bases are slippery
a)
true
b)
false
2.
On the pH scale higher numbers indicate
a)
acids
b)
bases
3.
both acids and bases are corrosive
a)
true
b)
false
4.
Litmus paper is an indicator of acids and bases, it turns red for bases.
a)
True
b)
false
5.
If you have a substance with a pH of 8 it is a(n).....
a)
Acid
b)
base
6.
If you have a substance with a pH of 7.1 it is a(n).....
a)
Acid
b)
base
7.
A pH of 14 is a .....
a)
strong acid
b)
weak acid
c)
Strong base
d)
Weak base
8.
A(n) ______ is a substance with a pH less than 7
a)
Acid
b)
Alkaline
c)
Base
d)
Buffer
9.
What is the only substance with a neutral pH of 7?
a)
Milk
b)
Orange Juice
c)
Water
d)
Blood
10.

What is the Law of Conservation of Mass?

a)

It states that no matter can be created or destroyed.

b)

It states that no energy can be created or destroyed.

c)

It states that matter can be created or destroyed.

d)

It states that no sound can be created or destroyed.

11.

Is this equation balanced?

a)

yes

b)

no

c)

Not enough information

12.

Is the equation balanced?: 2H2O + O2 --> 4MgO + 3Fe

a)

Yes

b)

No

13.

What coefficient should go in the blank to make this equation satisfy the Law of Conservation of Mass?

SnO2 + 2H2 → Sn + __ H2O

a)

5

b)

1

c)

3

d)

2

14.

What color do acids turn pH paper?

a)

Blue

b)

Green

c)

Orange

d)

Red

15.

What is another word used to describe bases?

a)

Atomic

b)

Alkaline

c)

Allusive

d)

Arctic

16.

Which substance is an acid?

a)

Baking soda

b)

Tea

c)

Water

d)

Mountain Dew (Soda)

17.

Which pH is neither an acid nor a base?

a)

6.99999999

b)

7.00000000001

c)

7

d)

14

e)

0

18.

Select all the equations below that DO NOT satisfy the Law of Conservation of Mass.

a)

2H2 + O2 ---> 2H2O

b)

Na2O + 2Cl ---> 2NaCl + O2

c)

4NH3 + 12LiCl ---> 4Li3N + 12HCl

d)

KF + N2Po3 ---> KPo3 + NF2

19.

In a chemical formula, the coefficient...

a)

tells how many of the element that it follows.

b)

is a divisor for all the elements in a formula.

c)

is a multiplier for all the elements in a formula.

d)

tells really bad dad jokes at Thanksgiving dinner.

20.

In a chemical equation the reactants are located...

a)

on the left.

b)

on the right.

c)

wherever carbon is located.

d)

in Biff LaRue's back pocket.

21.

In a chemical equation the products are located...

a)

on the left.

b)

on the right.

c)

wherever carbon is located.

d)

in Biff LaRue's back pocket.

22.
CaCO3 represents a chemical
a)
Symbol
b)
Formula
c)
Subscript
d)
Reaction
23.
Identify the reactant(s) and product(s) of the reaction.
a)
All three are reactants and none are products.
b)
Hydrogen and water are the reactants, and oxygen is the product.
c)
Water and oxygen are the reactants, and hydrogen is the product.
d)
Hydrogen and oxygen are the reactants, and water is the product.
24.
How many Oxygen (O) atoms are in 2C2HO8Cl2
a)
2
b)
16
c)
8
d)
5
25.
How many Hydrogen (H) atoms are in NH3O5
a)
3
b)
4
c)
5
d)
1
26.
How many elements are in C6H12O6?
a)
1
b)
2
c)
3
d)
4
27.
When dry ice (solid carbon dioxide) sublimes it goes directly from a solid to a gas. What type of change is occurring? 
a)
Chemical change
b)
Physical change
c)
None of the above 
28.
Why must we balance chemical equations? 
a)
Our teacher said so
b)
to abide by the law of conservation of energy
c)
to abide by the law of conservation of mass
29.
The esophagus is the tube that connects the mouth to the stomach. Heartburn occurs when some of the stomach juices flow backwards up the esophagus. To help relieve heartburn, a person should take medicine that is
a)
neutral
b)
basic
c)

acidic or basic.
d)
acidic
30.
Which of the following word pairs correctly completes the sentence below?
_______ are corrosive substances characterized as having a strong smell, a sour taste, and a _______.
a)
Acids; pH less than 7
b)
Acids; pH greater than 7
c)
Bases; pH greater than 7
d)
Bases; pH less than 7
31.
If an acid is combined with a base of equal strength, the result will most likely be
a)
a neutral solution.
b)
a stronger acid.
c)
impossible to tell without testing the pH.
d)
a stronger base
32.
Holly has an unknown substance in a beaker. She wants to determine the relative pH of the unknown substance. She places a piece of blue litmus paper into the substance, and the litmus paper stays blue.
The substance in the beaker
a)
is a base.
b)
has a neutral pH.
c)
is an acid.
d)
does not have a pH.
33.
 Which of the following is an acid?
a)
shampoo
b)
baking soda
c)
orange juice
d)
water
34.
The pH of a solution is tested, and it is found to be a basic solution. Of the following choices, what could the pH have been?
a)
3
b)
9
c)
7
d)
5
35.
Human blood has a pH between 7.35 and 7.45. Which of the following best describes human blood?
a)
strongly acidic
b)
slightly acidic
c)
strongly basic
d)
slightly basic
36.
When using pH paper, the pH of a solution can be determined by looking at the _______ of the paper.
a)
texture
b)
color
c)
length
d)
mass
37.
What is the approximate pH of seawater?
a)
2
b)
5
c)
7
d)
9
38.
Which food is the most acidic?
a)
bananas
b)
lemon juice
c)
orange juice
39.
Bleach is a strong base, what is the pH level of bleach?
a)
13
b)
14
c)
1
d)
2
40.
On the pH scale what numbers are bases?
a)
8-14
b)
0-7
c)
7
d)
1
41.
On the pH scale what numbers are acids?
a)
8-14
b)
0-7
c)
7
d)
1
42.
On the pH scale what numbers are neutrals?
a)
8-14
b)
0-7
c)
7
d)
1
43.
The pH scale measures...
a)
...the strength of an acid.
b)
...the strength of hydrogen ions.
c)
...the concentration of hydrogen ions.
d)
...the concentration of an acid
44.
Pollution causes the pH of rain water fall below 6. What is such type of rain called?
a)
Acid rain
b)
polluted rain
c)
low pH rain
45.
What methods can you use to measure the pH of a solution?
a)
Observing color or clarity
b)
Measuring mass or volume
c)
Measuring density or electrical conductivity
d)
Using acid base-indicators or pH meters
46.
is this object acidic or base
a)
Acidic
b)
Base
c)
neither
d)
neutral 
47.
One Dance
a)
Jay Z
b)
Kanye West
c)
Drake
d)
Chris Brown
48.
Work
a)
Rihanna
b)
Beyonce
c)
Shakira
d)
Lady Gaga
49.
Can't Stop The Feeling
a)
Justin Timberlake
b)
Justin Bieber
c)
Bruno Mars
d)
Olly Murs
50.
Sorry
a)
Justin Timberlake
b)
Jason Derulo
c)
Justin Bieber
d)
Shawn Mendes
51.
Stitches
a)
Niall Horan
b)
Austin Mahone
c)
The Weekend
d)
Shawn Mendes
52.
24K Magic
a)
Pharrell Williams
b)
Wiz Khalifa
c)
Mark Ronson
d)
Bruno Mars
53.
What player is considered one of the best basketball player ever and wore number 23
a)
Michael Jordan
b)
Larry Bird
c)
Patrick Kane
d)
Magic Johnson
54.
Who is the worlds fastest runner?
a)
Usain Bolt
b)
Griffith-Joyner
c)
Tyson Gray
d)
All of the above
55.
How many yards do you get for a new first down?
a)
10
b)
15
c)
50
d)
20
56.
Which NFL team is named for an Edgar Allan Poe poem?
a)
Ravens
b)
Eagles
c)
Broncos
d)
Chargers
57.
How long is the average soccer game?
a)
A. Two 15 minute halves
b)
B. Two 20 minute halves 
c)
C. Usually two 45 minute halves  
58.
What is the sports mascot for the Ohio State University?
a)
Hoosiers
b)
Jayhawks
c)
Boilermakers
d)
Buckeyes
59.
What is the sports mascot for Mary Baldwin College?
a)
Fighting Camels
b)
Fighting Squirrels
c)
Fighting Artichokes
d)
Banana Slugs
60.

Who is the mascot for the University of Tennessee?

a)

Smokey

b)

Davey Crockett

c)

George Washington

d)

Peyton Manning

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