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Physical Science Final Exam spring 2023

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Last updated almost 3 years ago
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Question 1
1.

Which of the following is an element?

Question 2
2.

Which of the following is a compound?

Question 3
3.

Choose one physical property.

Question 4
4.

Choose one chemical property.

Question 5
5.

The difference between a compound and a mixture is that the elements in a compound are chemically combined, but the components of a mixture are not.

Question 6
6.

When a substance melts, or boils, or freezes, it is a _________ change.

Question 7
7.

___________ changes can only be identified after the change has happened.

Question 8
8.

Phases (components) of a mixture can be easily seen in a:

Question 9
9.

A(n) ________ is the simplest form of matter with its own unique properties, while a(n) _________ is chemically combined in definite proportion.

Question 10
10.

A piece of paper is torn into small pieces.

Question 11
11.

An iron shovel is left outside and becomes covered in rust.

Question 12
12.

Copper will react with water to form green tarnish.

Question 13
13.

Sulfur is yellow and smells of rotten eggs.

Question 14
14.

The change from solid to liquid is called

Question 15
15.

Niels Bohr proposed this model of the atom, whose name comes from the position of electrons in orbits around the nucleus. What is it called?

Question 16
16.

An element’s atomic number is the

Question 17
17.

If an element has 9 protons and 10 neutrons, its atomic mass will be

Question 18
18.

If an element has 9 protons and 10 neutrons, the atomic number will be

Question 19
19.

Which region of the atom has the most mass?

Question 20
20.

Which region of the atom occupies the most space?

Question 21
21.

An atom has a neutral charge because

Question 22
22.

Elements that have the same number of protons but different numbers of neutrons are called

Question 23
23.

Choose the element that is liquid at room temperature.

Question 24
24.

Metals are

Question 25
25.

What is the most reactive element on the periodic table?

Question 26
26.

Elements within each group of the periodic table share similar chemical properties because they have identical

Question 27
27.

Which of the following is a noble gas?

Question 28
28.

Which of the following is an alkali metal?

Question 29
29.

Which of the following is a halogen?

Question 30
30.

Which of the following is a transition metal?

Question 31
31.

Which of these is a property of covalent compounds?

Question 32
32.

Metals are found on the __________ side of the periodic table, and they form __________, which are positively charged.

Question 33
33.

What type of bond would form between nitrogen and oxygen?

Question 34
34.

This type of bonding has valence electrons that move freely throughout the substance.

Question 35
35.

An ionic bond will form between

Question 36
36.

Metallic ions use the element name with no changes when naming compounds.

Question 37
37.

Non-metallic ions use the root portion of the element name with “ide” added when naming compounds.

Question 38
38.

Prefixes are used when naming

Question 39
39.

The prefix for "two" is

Question 40
40.

The prefix for "five" is

Question 41
41.

The formula for phosphate is

Question 42
42.

The formula for sulfate is

Question 43
43.

The formula for ammonium is

Question 44
44.

The formula for hydroxide is

Question 45
45.

The name of this compound, Mg3P2, is

Question 46
46.

Name this compound: NaOH

Question 47
47.

Name the following: MgO

Question 48
48.

Name this compound: Na3N

Question 49
49.

The formula for carbon tetrachloride

Question 50
50.

Formula for phosphorus pentachloride

Question 51
51.

Name this compound: SO2

Question 52
52.

Name this compound: CO

Question 53
53.

What is the formula for sodium chloride?

Question 54
54.

What is the formula for carbon tetrahydride?

Question 55
55.

What is the formula for copper(II) chloride?

Question 56
56.

What is the formula for potassium phosphate?

Question 57
57.

What is the formula for this compound: ammonium sulfate

Question 58
58.

A chemical equation must have an equal number of atoms on the left and right sides of the arrow.

Question 59
59.

In a chemical equation, the arrow means

Question 60
60.

A synthesis reaction has the general form of

Question 61
61.

Products of combustion when CH4 reacts with oxygen would be:

Question 62
62.

Single replacement reactions can occur when the element added to an ionic compound is less active than the metal in the compound.

Question 63
63.

When predicting products of a double replacement reaction, you must use the activity series of metals.

Question 64
64.

AB --> A + B is the common form of a __________________ reaction.

Question 65
65.

In the activity series of elements, their reactivity decreases as you move lower in the list.

Question 66
66.

Which of these elements is the most reactive?

Question 67
67.

Which of these chemical equations is correct?

Question 68
68.

Will this reaction take place? Mg + ZnCl2 —> MgCl2 + Zn

Question 69
69.

Will this reaction take place? 2 Ag + Li2O —> 2 AgO +2 Li

Question 70
70.

One of the products of this reaction [ Mg(OH)2 + NaCl —> ?] is

Question 71
71.

Balance this reaction: _CS2 + _O2 → _CO2 + _SO2

Question 72
72.

Balance this reaction: _CO2 + _H2O → _C2H2 + _O2 (Remember to simplify if needed.)

Question 73
73.

In the following balanced equation, 4Al + 3O2 --> 2Al2O3 , the four is a

Question 74
74.

In the following balanced equation, 4Al + 3O2 --> 2Al2O3 , the three following the oxygen (O) is a

Question 75
75.

Coefficients tell the number of ______________ of a compound present in a chemical reaction, and a subscript tells the number of ____________ present in a compound.