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WorksheetsInteraction of Atoms
Total questions: 35
Worksheet time: 32mins
Name
Class
Date
1.
represents the Law of Conservation of Mass/Matter.
a)
True
b)
False
c)
The reactants represent the Law of Conservation of Mass/Matter.
d)
The products represent the Law of Conservation of Mass/Matter.
2.
represents the Law of Conservation of Mass/Matter.
a)
True
b)
False
c)
The reactants represent the Law of Conservation of Mass/Matter.
d)
The products represent the Law of Conservation of Mass/Matter.
3.
is a representation of 2 H2O
a)
True
b)
False
4.
Number of H atoms in 4 H2O
a)
2
b)
4
c)
6
d)
8
5.
Number of O atoms in 4 H2O
a)
2
b)
4
c)
6
d)
8
6.
Number of Fe atoms in Fe3O4
a)
1
b)
2
c)
3
d)
4
7.
The molecule Na2CO3 contains
a)
2 different elements.
b)
3 different elements.
c)
4 different elements.
d)
6 different elements.
8.
The molecule Na2CO3 contains
a)
2 atoms.
b)
3 atoms.
c)
5 atoms.
d)
6 atoms.
9.
When iron combines with oxygen, rust forms. Consider the following reaction:
Fe + O = Rust
100 g iron + 43 g oxygen =
Fe + O = Rust
100 g iron + 43 g oxygen =
a)
43 g of rust
b)
100 g of rust
c)
57 g of rust
d)
143 g of rust
10.
Use the illustration to determine which of the following is the correct formula for carbonic acid.
a)
HCO
b)
H2C0O3
c)
H2CO3
d)
CO2 + H2O
11.
Which of the following statements is true of the illustration ?
a)
The illustration of photosynthesis represents the law of conservation of mass/matter.
b)
Matter is destroyed.
c)
Matter is created.
d)
All of the above are correct.
12.
Which of the following statements is true of the illustration ?
a)
The illustration of photosynthesis represents the law of conservation of mass/matter.
b)
Matter is destroyed.
c)
Matter is created.
d)
All of the above are correct.
13.
The reactants of photosynthesis are
a)
glucose and water.
b)
carbon dioxide and oxygen.
c)
carbon dioxide and water.
d)
glucose and oxygen.
14.
The products of photosynthesis are
a)
glucose and water.
b)
carbon dioxide and oxygen.
c)
carbon dioxide and water.
d)
glucose and oxygen.
15.
What is an ion?
a)
A Charged Atom
b)
A Large Atom
c)
A Small Atom
d)
A Cute Atom
16.
Why are ions formed?
a)
To make our lives difficult
b)
Because atoms want 8 valence electrons
c)
Because atoms have the same number of protons and electrons
d)
Because atoms gained neutrons
17.
An atom becomes _________ when it gains electrons.
a)
Positive
b)
Negative
c)
Neutral
d)
Invinsible
18.
Elements on the LEFT side of the periodic table will most likely form:
a)
Positive ions
b)
Negative ions
c)
Neutral Ions
d)
None of these
19.
Cations are...
a)
Positive
b)
Negative
c)
Neutral
d)
Purring
20.
Anions are...
a)
Positive
b)
Negative
c)
Neutral
d)
Crying
21.
An atom becomes _______ when it loses electrons.
a)
Positive
b)
Negative
c)
Neutral
d)
Invinsible
22.
Which particles change the charge in atoms when ions are formed?
a)
Protons
b)
Electrons
c)
Neutrons
d)
Kittens
23.
Electrons are always lost from:
a)
the shell closest to the nucleus
b)
the shell where the electrons have the least energy
c)
the outermost shell where electrons are present
d)
the excited state of the electrons
24.
When metals form ions:
a)
they lose electrons and form cations
b)
they gain electrons and form cations
c)
they lose electrons and form anions
d)
they gain electrons and form anions
25.
Ionic Bonding involves...
a)
The transfer of protons
b)
The transfer of nuetrons
c)
The transfer of electrons
d)
None Of the above
26.
What do atoms that form positive ions tend to do?
a)
Tend to lose electrons
b)
Tend to lose protons
c)
Tend to gain electrons
d)
Tend to gain protons
27.
Covalent compounds
a)
Share electrons
b)
transfer electrons
c)
contain a sea of electrons
d)
conduct electricity
28.
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
29.
What elements generally make an ionic bond?
a)
metal and nonmetal
b)
2 or more nonmetals
c)
metal
d)
none of the above
30.
What elements generally make a covalent bond?
a)
metal and nonmetal
b)
2 or more nonmetals
c)
metal
d)
none of the above
31.
Predict the bond that will form between Be and F.
a)
Ionic
b)
Covalent
32.
Predict the bond that will form between Se and Cl.
a)
Ionic
b)
Covalent
33.
What is a valence electron?
a)
an electron that is found in the outermost shell of an atom.
b)
an electron found in the innermost shell of an atom.
c)
an electron found in the middle shell.
34.
What is the number of valence electrons for Oxygen?
a)
8
b)
6
c)
2
d)
1
35.
How many valence electrons in this structure?
a)
6
b)
5
c)
4
d)
7
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