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Chemical Reactions Lab BW
By Danielle Smith
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Last updated 2 days ago
11 questions
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Question 1
1.
Question 2
2.
Question 3
3.
Question 4
4.
Question 5
5.
Question 6
6.
Question 7
7.
Question 8
8.
Question 9
9.
Question 10
10.
Question 11
11.
What type of reaction is the following:
4 Fe (s) + 3O
2
(g) ---> 2 Fe
2
O
3
(s)
synthesis
single replacement
decomposition
combustion
What type of reaction is the following:
C
3
H
8
(g) + 5 O
2
(g) ---> 3 CO
2
(g) + 4 H
2
O (g)
double replacement
single replacement
combustion
decomposition
What type of reaction is the following:
2 Al (s) + 3 CuCl
2
(aq) ---> 3 Cu (s) + 2 AlCl
3
(aq)
synthesis
single replacement
double replacement
combustion
What type of reaction is the following:
Pb(NO
3
)
2
(aq) + 2 KI (aq) ---> PbI
2
(s) + 2 KNO
3
(aq)
single replacement
double replacement
decomposition
synthesis
What type of reaction is the following:
CuCO
3
(s) ---> CuO (s) + CO
2
(g)
synthesis
decomposition
combustion
single replacement
Select all of the following characteristics that indicate a chemical reaction has occured.
melting
production or aborption of heat
formation of a precipitate or new product
release of a gas or bubbles
absorption or emission of light
evaporating
freezing
production of a sound
a change in color
For reaction #1, what color will the cobalt chloride test paper be when it comes in contact with water vapor?
white
pink
orange
blue
For reaction #2, you should look
directly
at the buring magnesium.
True
False
For reaction #3, where do you place the 1 mL of ethyl alcohol?
into a previously used watch glass
in a test tube
on the table
into a clean watch glass
For reaction #4, you should cross contaminate the two stock bottles of calcium chloride and sodium bicarbonate by mixing up the two pipettes.
True
False
For reaction #5, why should you be cautious of using the silver nitrate?
it can stain your skin and clothing
it can eat through your gloves
it can cause a rash
it will burn your skin