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v2 Intro to Chemistry Quiz #1
By Sarah Erskine
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Last updated over 5 years ago
13 questions
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Question 1
1.
Question 2
2.
Question 3
3.
Question 4
4.
Question 5
5.
List the Elements that are present in the chemical equation above
Question 6
6.
In the last molecule, how many atoms of carbon are there?
Question 7
7.
Question 8
8.
Question 9
9.
In your own words, describe the law of Conservation of Matter
Question 10
10.
Question 11
11.
Question 12
12.
Draggable item
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Corresponding Item
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Question 13
13.
Extra Credit. Balance the Equation - Use the space to show your work
visibility
View drawing
Determine which of the following represent a chemical change (select all that apply)
baking a cake
painting the walls
forest fire
boiling soup
freezing leftovers
Does a chemical reaction take place during a chemical change?
Yes
No
What are the
reactants
in the equation above?
6CO
2
+ 6H
2
O
6O
2
+ C
6
H
12
O
6
What are the
products
in the equation above?
6CO
2
+ 6H
2
O
6O
2
+ C
6
H
12
O
6
What does the coefficient of 6 in front of water tell you?
there are six atoms of water
there are 6 atoms of hydrogen
there are 6 molecules of water
In the chemical equation above, are the products the same substances as the reactants
yes
no
You add 20g of baking soda and 30g of vinegar into a flask. A chemical reaction happens. What do you expect the mass of the products to be?
10g
20g
30g
50g
After the reaction the flask felt
cold
. Based on the temperature change, what type of reaction is it?
endothermic reaction
exothermic reaction
Determinewhich of the following is an element, compound or mixture
chlorine
mixture
water
element
salt water
compound
