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Test #1 Review

Total questions: 42

Worksheet time: 2hrs 54mins

Name
Class
Date
1.

Which is true about the periodic table trend for atomic radius?

a)

it stays constant within a period

b)

it decreases from top to bottom in a group

c)

it increases from left to right across a period

d)

it decreases from left to right

2.

Which is true about the periodic table trend for electronegativity?

a)

it stays constant for all elements

b)

it increases from top to bottom in a group

c)

it is higher for metals than non metals

d)

it increases from left to right

3.

Which of the following have both metal and non-metal properties?

a)

Neon (Ne)

b)

Arsenic (As)

c)

Magnesium (Mg)

d)

Sulfur (S)

4.

the smallest particle of an element that has all of the properties of the element

a)

compound

b)

atom

c)

neutron

d)

positron

5.

All atoms of the same element will ALWAYS have

a)

the same number of neutrons

b)

the same number of electrons

c)

the same number of protons

d)

they are all different

6.

the atomic number is

a)

the number of protons

b)

the number of neutrons

c)

the number of electrons

d)

the number of protons plus electrons

7.

the atomic mass is

a)

the number of protons

b)

the number of neutrons plus protons

c)

the number of electrons

d)

the number of protons plus electrons

8.

How many protons neutrons and electrons are in a neutral atom of Boron- 10 (atomic number is 5 and atomic mass is 10)

a)

5 protons and 5 neutrons

b)

6 protons and 5 neutrons

c)

6 protons and 4 neutrons

d)

5 protons and 10 neutrons

9.

an ionic compound is almost always composed of

a)

two metals

b)

two non-metals

c)

a metal and a non-metal

10.

a covalent compound is composed of

a)

two metals

b)

two non-metals

c)

a metal and a non-metal

11.

What would we call methane -   CH₄

a)

a heterogeneous mixture

b)

a homogeneous mixture

c)

an element

d)

a compound

12.

What is true about neutral atoms?

a)

they have the same number of protons and electrons

b)

they have the same number of protons and neutrons

c)

they have the same number of neutrons and electrons

13.

What would we call nitrogen?

a)

an element

b)

a compound

c)

a heterogeneous mixture

d)

a homogeneous mixture

14.

What is an atom with the same number of protons but a different number of NEUTRONS?

a)

ion

b)

isotope

15.

What is an atom with the same number of protons but a different number of ELECTRONS?

a)

ion

b)

isotope

16.

What type of reaction is this?

2 C6H14 + 19 O2 → 12 CO2 + 14 H2O

a)

Single Replacement

b)

Double Replacement

c)

Combustion

d)

Decomposition

17.
4Si + S8 --> 2Si2S4
a)
Synthesis
b)
Decomposition
c)
Single displacement
d)
Double displacement
18.
3Ca + 2AlCl3 --> 3CaCl2 + 2Al
a)
Synthesis
b)
Decomposition
c)
Single diplacement
d)
Double displacement
19.
Which reaction type is the following: C5H10O4 + O2 --> CO2 + H2O
a)
Decomposition
b)
Single Replacement
c)
Combustion
d)
Double Replacement
20.

Identify if the following equation is unbalanced or balanced.

4K+P3→3KP+K

a)

Unbalanced

b)

Balanced

21.

Identify if the following equation is unbalanced or balanced.

5C4O8→10C+2C5O20

a)

Unbalanced

b)

Balanced

22.

Which of the following statements explains the law of conservation of energy?

a)
Energy is needed to break chemical bonds
b)
An exothermic reactions releases energy
c)
Light energy is released by some exothermic reactions
d)
In a chemical reaction, energy is neither created nor destroyed, but can change form
23.
What atom matches this electron configuration?
1s22s22p63s23p64s23d10
a)
Zinc
b)
Copper
c)
Nickel
d)
Germanium
24.
What electron configuration matches an oxygen atom?
a)
1s22s22p63s2, 3p64s23d104p5
b)
1s22s22p4
c)
1s22s22p6
d)
1s22s22p63s23p64s23d1
25.
Which element is pictured?
a)
neon
b)
fluorine
c)
magnesium
d)
argon
26.

Nonmetals tend to

a)

gain electrons

b)

lose electrons

27.

Metals tend to

a)

gain electrons

b)

lose electrons

28.
If my charge becomes 2+ what does that say about me?
a)
I am stealing 2 electrons
b)
I am losing 2 electrons
c)
I am in period 2
d)
I have an atomic # of 2
29.
If I gain electrons I become
a)
Positive because I've added to my atom
b)
negative because I've added electrons
c)
same because i'm balanced
d)
equal because now I have electrons
30.
When metals bond with non-metals they form what type of bonds
a)
covalent
b)
ionic
c)
cooperative
d)
lewis
31.
How do the following two elements bond together?
Na1+  F1-         
a)
NaF
b)
NaF3
c)
Na3F
d)
Na1F2
32.
How do the following two elements bond together?
Cr3+  O2-         
a)
CrO
b)
Cr3O2
c)
Cr2O3
d)
CrO3
33.
How do the following two elements bond together?
K1+  S2- 
a)
KS
b)
K8S
c)
K6S3
d)
K2S
34.

When a nonmetal gains electrons, it becomes this type of ion.

a)

Anion

b)

Cation

35.

When a metal loses electrons, it becomes this type of ion.

a)

anion

b)

cation

36.
What is the mole ratio of H2O to H3PO4 in the following chemical equation?   P4O10 + 6 H2O --> 4 H3PO4 
a)
6:4
b)
4:6
c)
1:3
d)
3:1
37.
The first step in stoichiometry is to
a)
Determine a balanced equation
b)
convert grams to moles
c)
convert grams to liters
d)
use the mole ratio
38.
2H2   +   O2  →  2H2O
How many moles of water can be produced if 8 moles H2 are used?
a)
4 moles
b)
8 moles
c)
16 moles
d)
2 moles
39.

The molar mass of hydrogen peroxide, H2O2

a)

18 grams

b)

18 g/mole

c)

34 g/mole

d)

34 moles

40.
If an atom of Fluorine has an atomic mass of 19 amu, it has a Molar mass of ____
a)
19 lbs.
b)
19 kg
c)
How am I supposed to know?
d)
19 g/mol
41.

2 KClO3 → 2 KCl + 3 O2 How many moles of oxygen are produced when 6.7 moles of KClO3 decompose into KCl and O2?

a)

6.7 mol

b)

1.0 mol

c)

10.1 mol

d)

4.5 mol

42.
CH4 + 2 O2 → CO2 + 2 H2O
How many moles of carbon dioxide are produced from the combustion of 110 g of CH4?
a)
13.7 mol
b)
2.75 mol
c)
6.11 mol
d)
6.85 mol

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