WorksheetsIPC Unit 4 Test Review
Total questions: 46
Worksheet time: 25mins
Name
Class
Date
1.
How prepared do you feel for the test on Friday?
a)
Not ready at all
b)
100% ready...I could take it today
c)
Kind of ready, kind of not
2.
How many valence electrons does Carbon Have?
a)
1 Valence electron
b)
2 Valence electron
c)
3 Valence electron
d)
4 Valence electron
e)
5 Valence electron
3.
How many valence electrons does Oxygen Have?
a)
4 Valence electron
b)
5 Valence electron
c)
6 Valence electron
d)
7 Valence electron
e)
8 Valence electron
4.
This could be the dot diagram of
a)
Mg
b)
Cl
c)
C
d)
O
5.
This is a correct dot diagram for neon (Ne)
a)
true
b)
false
6.
How would you draw a Lewis dot diagram for Magnesium?
a)
b)
c)
d)
7.
What element is represented in this Bohr Model?
a)
Carbon
b)
Hydrogen
c)
Aluminum
d)
Lithium
8.
What is the name of this element?
a)
Helium
b)
Hydrogen
c)
Argon
d)
Silver
9.
In an exothermic reaction, heat is ...
a)
taken in
b)
given out
10.
In an endothermic reaction, heat is ,,,
a)
taken in
b)
given out
11.
What type of reaction occurs in a hand warmer
a)
exothermic
b)
endothermic
12.
During an endothermic reaction in a beaker if we are part of the surroundings and touched the beaker, it would feel _______.
a)
Warm
b)
Cold
13.
What are the products of the chemical reaction pictured?
a)
CH4 and CO2
b)
CH4 and O2
c)
CO2 and H2O
d)
O2 and H2O
14.
Consider the chemical equation CH4 + 2 O2 → CO2 + 2 H2O. In this equation, CH4 is a
a)
product
b)
reactant
c)
displacement
15.
What is the left part of a chemical equation called?
H2 + O → H2O
H2 + O → H2O
a)
Reactants
b)
Products
c)
Yields
d)
Chemical Equation
16.
What is the right part of a chemical equation called?
H2 + O → H2O
H2 + O → H2O
a)
Reactants
b)
Products
c)
Yields
d)
Chemical Equation
17.
Baking is pretty much just ___
a)
astronomy
b)
chemistry
c)
biology
d)
physics
18.
Unlike the mixtures from our picnic, chemical changes usually ___
a)
can't be eaten
b)
can't be undone
c)
involve only two things
d)
can be seperated
19.
Which of these is NOT an indicator of a chemical change?
a)
a change in color
b)
giving off or taking in of heat
c)
the release of gases
d)
a change in shape
20.
A green powder is heated & a gas is given off while it turns to a black solid. This describes
a)
Physical Change
b)
Chemical Change
c)
Change in State
d)
Change in Temperature
21.
Which of the following could indicate that a chemical change took place?
a)
Formation of precipitate
b)
Change in odor
c)
Formation of light
d)
All are correct
22.
How many Hydrogen are in 4H2O?
a)
6
b)
8
c)
2
d)
4
23.
How many Oxygen are in H2O?
a)
1
b)
2
c)
0
d)
4
24.
How many Magnesium are in 10MgCl2?
a)
10
b)
5
c)
20
25.
How many O's are in Al₂(SO₄)₃
a)
4
b)
12
c)
7
d)
24
26.
Number of H in 3(NH₄)₂CrO₄
a)
4
b)
2
c)
8
d)
24
27.
How many elements are in C6H12O6?
a)
1
b)
2
c)
3
d)
4
28.
A subscript is the small number below a(n) ________ that tells the number of _______ of that element.
a)
element symbol; atoms
b)
atom; element symbol
c)
subscript; protons
d)
compound; elements
29.
The large number in front of a chemical formula or compound is the ___________.
a)
coefficient
b)
product
c)
physical
d)
chemical
30.
In every balanced chemical equation, each side of the equation has the same number of ____.
a)
coefficients
b)
moles
c)
molecules
d)
atoms of each element
31.
When balancing equations what does
-->
mean?
-->
mean?
a)
subscript
b)
equals
c)
it is just an arrow
d)
yield
32.
Matter can not be created nor destroyed: it can only be
a)
Destroyed a little bit
b)
Invisible
c)
Transformed, changed
d)
None of the above
33.
A chemical reaction is balanced when
a)
both sides have the same elements
b)
Both sides have the same number of atoms
c)
Same subscripts
d)
Same coefficients
34.
Which of these is not a chemical reaction?
a)
Burning of wood
b)
Milk going bad
c)
Mixing vinegar and baking soda
d)
Melting of ice
35.
If reaction starts with 20g of reactants it should produce
a)
a total of 40g of products
b)
a total of 10g of products
c)
a total of 80 g of products
d)
a total of 20g of products
36.
What will weigh more when a chemical change is complete? The reactants before the chemical reaction, or the product after the reaction is complete?
a)
They both will weigh the same
b)
The product always weighs more than the reactant
c)
The reactant will weigh more than the product
d)
They both will loose mass after the reaction
37.
In a reaction A + B ----> C, reactant A has 5g and product C has 9g. How many grams does reactant B should have?
a)
4g
b)
5g
c)
9g
d)
14g
38.
In the reaction AB-----> A + B reactant AB has 12g and product B has 5g. How many grams should product A have?
a)
17g
b)
2g
c)
7g
d)
None of the above
39.
24 g of magnesium reacts with 38 g of fluorine to produce _____ g magnesium fluoride
a)
62
b)
38
c)
24
d)
14
40.
Is the following equation balanced or unbalanced?
Fe + S --> FeS
Fe + S --> FeS
a)
balanced
b)
unbalanced
41.
Balance this equation, Al2O3 ---> Al + O2
a)
Cannot be balanced
b)
2Al2O3 ---> 2Al + 3O2
c)
2Al2O3 ---> 4Al + 3O2
d)
3Al2O3 ---> 2Al + O2
42.
_K + _Cl2 →_KCl
a)
2 K + 16 Cl2 → 8 KCl
b)
2 K + 1 Cl2 → 2 KCl
c)
3 K + 4 Cl2 → 3 KCl
d)
1 K + 1 Cl2 →1 KCl
43.
_NaF + _Br2 →_NaBr + _F2
a)
1NaF + 2 Br2 →1 NaBr + 2 F2
b)
2NaF + 2 Br2 → 2 NaBr + 2 F2
c)
2 NaF + 3 Br2 → 1 NaBr + 2 F2
d)
2 NaF + 1 Br2 → 2 NaBr + 1 F2
44.
_AlBr3 + _K2SO4 → _KBr + _Al2(SO4)3
a)
6 AlBr3 + 1 K2SO4 → 6 KBr + 1 Al2(SO4)3
b)
2 AlBr3 + 3 K2SO4 → 6 KBr + 1 Al2(SO4)3
c)
1 AlBr3 + 1 K2SO4 → 2 KBr + 3 Al2(SO4)3
d)
2 AlBr3 + 3 K2SO4 → 1 KBr + 2 Al2(SO4)3
45.
_BaS + _PtF2 → _BaF2 + _PtS
a)
1 BaS + 1 PtF2 → 1 BaF2 + 1 PtS
b)
4 BaS + 2 PtF2 → 1 BaF2 + 1 PtS
c)
1 BaS + 2 PtF2→ 2 BaF2 + 2 PtS
d)
1 BaS + 3 PtF2 →1 BaF2 + 2 PtS
46.
Now after doing this review, how prepared do you feel for the test on Friday?
a)
I feel better prepared now
b)
I'm still completely lost
c)
I was already prepared
100 %
