Quiz about P.S. FINAL EXAM PRACTICE TEST CHEMISTRY FALL '23

Question 1

A is the ___.

Accepted Answer

valence electron shell

Answer

electron

Answer

nucleus

Answer

proton

Answer

neutron

Question 2

B is the ___.

Accepted Answer

nucleus

Answer

electron

Answer

electron shell

Answer

proton

Answer

neutron

Question 3

C is the ___.

Accepted Answer

electron

Answer

nucleus

Answer

electron shell

Answer

proton

Answer

neutron

Question 4

D is the ___.

Accepted Answer

proton

Answer

electron

Answer

nucleus

Answer

electron shell

Answer

neutron

Question 5

E is the ___.

Accepted Answer

neutron

Answer

electron

Answer

nucleus

Answer

electron shell

Answer

proton

Question 6

F is the ___.

Accepted Answer

electron shell

Answer

electron

Answer

nucleus

Answer

proton

Answer

neutron

Question 7

In atoms, protons have (a) ___ charge, neutrons have (a) ___ charge, and electrons have (a) ___ charge.

Accepted Answer

Answer

no / + / -

Answer

Answer

Question 8

Atoms are neutral, meaning that they have no charge, because ___.

Accepted Answer

the number of protons are equal to the number of electrons

Answer

the number of protons are equal to the number of neutrons

Answer

the number of electrons are equal to the number of neutrons

Question 9

When atoms lose or gain electrons, they become ___.

Accepted Answer

ions

Answer

isotopes

Answer

another element

Question 10

When atoms lose or gain protons , they become ___.

Accepted Answer

another element

Answer

isotopes

Answer

ions

Question 11

When atoms lose or gain neutrons , they become ___.

Accepted Answer

isotopes

Answer

ions

Answer

another element

Question 12

The cation Na⁺ has ___ protons and ___ electrons.

Accepted Answer

11 / 10

Answer

11 / 11

Answer

10 / 10

Answer

10 / 11

Question 13

The anion O^2- has ___ protons and ___ electrons.

Accepted Answer

8 / 10

Answer

10 / 10

Answer

8 / 8

Answer

16 / 10

Question 14

The isotope Al-28 has ___ protons, ___ electrons, and neutrons.

Accepted Answer

13 , 13 , 15

Answer

13 , 13 , 13

Answer

28 , 28 , 28

Answer

13 , 28 , 15

Question 15

An element is a substance whose atoms all have the same number of ___.

Accepted Answer

protons

Answer

electrons

Answer

neutrons

Answer

pootrons

Question 16

The rows (across/horizontal) on the periodic table are called ___ and the columns (up and down/vertical) on the periodic table are called ___.

Accepted Answer

periods / groups

Answer

files / sectors

Answer

rails / rungs

Answer

ranks / clusters

Question 17

Most of the elements on the periodic table are ___.

Accepted Answer

metals

Answer

metalloids

Answer

nonmetals

Question 18

Atoms are arranged on the periodic table by increasing ___ number, which is the number of ___.

Accepted Answer

atomic / protons in nuclei

Answer

mass / neutrons in nuclei

Answer

charge / electrons in shells

Question 19

Elements in the same group on the periodic table have ___ properties because their atoms have ___

number(s) of valence electrons.

Accepted Answer

similar / the same

Answer

different / different

Answer

different / the same

Answer

similar / different

Question 20

The number 12.011 is the ___ number and when rounded to 12, tells us the number of ___ in the nucleus of carbon atoms.

Accepted Answer

mass / protons and neutrons

Answer

atomic / protons and electrons

Answer

charge / electrons

Answer

period / neutrons

Question 21

This chemical symbol for carbon tells us that most carbon atoms have ___ neutrons in their nuclei.

Accepted Answer

6

Answer

12

Answer

18

Answer

period / neutrons

Question 22

Substances made up of different elements bonded together are called ___.

Accepted Answer

compounds

Answer

mixtures

Answer

solutions

Answer

alloys

Question 23

When two or more atoms (same or different) bond together, ___ are formed.

Accepted Answer

molecules

Answer

mixtures

Answer

elements

Answer

solutions

Question 24

Covalent compounds are formed when electrons are ___ to make chemical bonds.

Accepted Answer

shared

Answer

transferred

Question 25

Ionic compounds are formed when electrons are ___ to make chemical bonds.

Accepted Answer

transferred

Answer

shared

Question 26

This oxygen atom has ___ valence electrons, which are the electrons involved in making chemical bonds with other atoms.

Accepted Answer

6

Answer

2

Answer

8

Question 27

This oxygen atom has to gain ___ valence electrons to get a full octet to become stable.

Accepted Answer

2

Answer

6

Answer

8

Question 28

Covalent compounds form between ___ elements.

Accepted Answer

nonmetal

Answer

metal and nonmetal

Question 29

Ionic compounds form between ___ elements.

Accepted Answer

metal and nonmetal

Answer

nonmetal

Question 30

The name for MgCl₂ is ___.

Accepted Answer

magnesium chloride

Answer

magnesium dichloride

Answer

magnesium chlorine

Answer

monomagnesium dichloride

Question 31

What is the name for N₂O₄?

Accepted Answer

dinitrogen tetroxide

Answer

nitrogen oxide

Answer

dinitrogen tetraoxide

Answer

nitrogen oxygen

Question 32

What is the formula for aluminum sulfide?

Accepted Answer

Al2S3

Answer

AlS

Answer

Al3S2

Answer

AlS2

Question 33

What is the formula for barium oxide?

Accepted Answer

BaO

Answer

Ba2O2

Answer

Ba2O3

Answer

Ba3O3

Question 34

Which of the following is NOT a sign that a chemical reaction may have occurred?

Accepted Answer

mass change

Answer

color change

Answer

odor change

Answer

temperature change

Question 35

Chemical reactions that release heat are ___ and chemical reactions that absorb heat are ___.

Accepted Answer

exothermic / endothermic

Answer

endothermic / exothermic

Question 36

Which coefficient set will balance:

MnO₂(s) + Mg(s) => Mn(s) + MgO(s) ?

Accepted Answer

1,2,1,2

Answer

2,2,1,1

Answer

1,2,2,1

Answer

1,3,3,2

Question 37

Which coefficient set will balance:

Cl₂(g) + CsI(aq) => CsCl(aq) + I₂(s) ?

Accepted Answer

1,2,2,1

Answer

2,2,1,1

Answer

1,3,3,2

Answer

1,1,2,2

Question 38

Which coefficient set will balance:

K₂O(s) + H₂O(l) => KOH(aq) ?

Accepted Answer

1,1,2

Answer

2,2,1

Answer

1,2,2

Answer

1,2,1

Question 39

What type of reaction is

AgCl(s) => Ag(s) + Cl₂(g) ?

Accepted Answer

decomposition

Answer

single replacement

Answer

double replacement

Answer

synthesis

Question 40

What type of reaction is

Na₂O(s) + H₂O(l) => NaOH(aq) ?

Accepted Answer

synthesis

Answer

single replacement

Answer

double replacement

Answer

decomposition

Question 41

What type of reaction is

C₃H₈ (g) + O₂ (g) => CO₂(g) + H₂O (g) ?

Accepted Answer

combustion

Answer

single replacement

Answer

double replacement

Answer

synthesis

Question 42

What type of reaction is

Cl₂(g) + KI(aq) => KCl(aq) + I₂(s) ?

Accepted Answer

single replacement

Answer

double replacement

Answer

synthesis

Answer

decomposition

Question 43

What type of reaction is

K₂SO₄ + MgCl₂ => KCl + MgSO₄?

Accepted Answer

double displacement

Answer

single displacement

Answer

decomposition

Answer

synthesis

Question 44

The natural law that governs the quantities of reactants and products in chemical reactions, the law of the conservation of mass, states:

Accepted Answer

the mass of the reactants is equal to the mass of the products in chemical reactions.

Answer

the mass of the reactants is less than the mass of the products in chemical reactions.

Answer

the mass of the reactants is more than the mass of the products in chemical reactions.

Question 45

Kool-Aid can be used to tie dye shirts by just mixing it with hot water to make a hot Kool-Aid solution.

In the Kool-Aid solution, the Kool-Aid is the___ and the water is the ___.

Accepted Answer

solute / solvent

Answer

element / compound

Answer

atom / molecule

Answer

reactant / product

Question 46

This salad dressing is a ___ mixture. So it ___ a solution.

Accepted Answer

heterogeneous / is not

Answer

homogeneous / is not

Answer

heterogeneous / is

Answer

homogeneous / is

Question 47

This tea, without the lemon, is a ___ mixture so it

___ a solution.

Accepted Answer

homogeneous / is

Answer

heterogeneous / is

Answer

homogeneous / is not

Answer

heterogeneous / is not

Question 48

The solubility of a solute tells us ___.

Accepted Answer

how much solute dissolves in a given amount of solvent

Answer

how much solvent dissolves in a given amount of solute

Answer

how fast a solvent dissolves in a given amount of solute

Answer

how fast a solute dissolves in a given amount of solvent

Question 49

The pH of a solution depends on the amount H⁺/H₃O⁺ ___ in the solution.

Accepted Answer

ions

Answer

atoms

Answer

molecules

Answer

elements

Question 50

The the lower the pH of a substance, the ___ H⁺/H₃O⁺ ions it has in it and the ___ OH^- ions it has in it.

Accepted Answer

more/less

Answer

less/more

Question 51

The the higher the pH of a substance, the ___ H⁺/H₃O⁺ ions it has in it and the ___ OH^- it has in it.

Accepted Answer

less/more

Answer

more/less

Question 52

The the pH scale goes from ___ to ___.

Accepted Answer

0 - 14

Answer

0 - 20

Answer

5 - 25

Answer

1 - 50

Question 53

Bases have a pH of ___.

Accepted Answer

more than 7 to 14

Answer

0 to less than 7

Answer

5 to 14

Answer

1 to 14

Question 54

Acids have a pH of ___.

Accepted Answer

0 to less than 7

Answer

5 to 14

Answer

more than 7 to 14

Answer

1 to 14

Question 55

Substances with a of 7 like water are neutral meaning that they have ___.

Accepted Answer

equal amounts of H+ ions and OH- ions

Answer

more H+ ions than OH- ions

Answer

less H+ ions than OH- ions

Question 56

Blue litmus paper turns ___ in acids.

Accepted Answer

red

Answer

green

Answer

purple

Answer

pink

Question 57

Red litmus paper turns ___ in bases.

Accepted Answer

blue

Answer

green

Answer

brown

Answer

pink

Question 58

Which of the following household substances is NOT a base?

Accepted Answer

vinegar

Answer

hand soap

Answer

window cleaner

Answer

detergent

Question 59

Which of the following household substances is NOT an acid?

Accepted Answer

baking soda

Answer

soda pop

Answer

vinegar

Answer

ketchup

P.S. FINAL EXAM PRACTICE TEST CHEMISTRY FALL '23

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