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WorksheetsMatter & It's Interactions Unit 1
Total questions: 20
Worksheet time: 15mins
Name
Class
Date
1.
If you have "3" molecules of H2O how many atoms are present?
a)
6 Hydrogen 3 oxygen
b)
6 Hydrogen 6 oxygen
c)
3 Hydrogen 6 oxygen
d)
3 Hydrogen 3 oxygen
2.
Use periodic table to tell the proton, neutron and electron numbers of iron
a)
26, 30, 26
b)
56, 26, 30
c)
26, 30, 30
d)
56, 26, 56
3.
What is found in the nucleus
of an atom
a)
protons and neutrons
b)
protons and electrons
c)
neutrons and electrons
d)
electrons and nucleus
4.
An atom becomes _________ when it gains electrons.
a)
Positive
b)
Negative
c)
Neutral
d)
Invinsible
5.
Cations are...
a)
Positive
b)
Negative
c)
Neutral
d)
Purring
6.
An atom becomes _______ when it loses electrons.
a)
Positive
b)
Negative
c)
Neutral
d)
Invinsible
7.
This could be the dot diagram of
a)
Mg
b)
Cl
c)
C
d)
O
8.
On the periodic table, Periods are
a)
Horizontal rows
b)
Vertical columns
9.
What is the atomic number of this atom?
a)
2
b)
4
c)
6
d)
8
10.
What is this element?
a)
Beryllium (atomic #4)
b)
Boron (atomic #5)
c)
Carbon (atomic #6)
d)
Nitrogen (atomic #7)
11.
What group does this element belong to?
a)
1
b)
2
c)
17
d)
18
12.
NH4+
a)
nitrogen hydride
b)
ammonium
13.
3Ca + 2AlCl3 --> 3CaCl2 + 2Al
a)
Synthesis
b)
Decomposition
c)
Single Displacement
d)
Double Displacement
14.
Two Reactants and One Product
a)
Decomposition
b)
Synthesis
c)
Combustion
d)
Single Replacement
15.
2Pb(NO3)2 --> 2PbO + 4NO2 + O2
a)
Synthesis
b)
Decomposition
c)
Single Displacement
d)
Combustion
16.
What is the right ratio of chemicals for the BCE (Balanced Chemical Equation)?__CO + __Fe2O3--> __Fe + __CO2
a)
3,1 --> 2,3
b)
3,2 --> 1,1
c)
3,2 --> 2,4
d)
3,2 --> 2,1
17.
What is the right ratio of chemicals for the BCE (Balanced Chemical Equation)?__Al + __O2--> __Al2O3
a)
4,1 --> 2
b)
4,3 --> 4
c)
3,4 --> 1
d)
4,3 --> 2
18.
OH-
a)
hydronium
b)
hydroxide
19.
2H2 + O2 --------> 2H2O What are the reactants?
a)
----->
b)
2H2O
c)
2H2 +O2
20.
Number of H in 3(NH₄)₂CrO₄
a)
4
b)
2
c)
8
d)
24
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