Chemical Equations and Charge
Quiz
•
Chemistry
•
10th - 12th Grade
•
Medium
Felicia Owens
Used 65+ times
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21 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The law of conservation of mass states that....
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Is this balanced?...
Al + O2 --> 2Al2O3
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Balance this equation...
HgO --> 2Hg + O2
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
At the end of chemical reactions, what is the total mass of the reactants compared to the total mass of the products?
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many valence electrons does magnesium have?
6
12
2
10
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are valence electrons?
electrons in the outermost energy level
electrons in the innermost energy level
positively charged ions
energy used for attraction in a shell
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many valence electrons does elements in group 16 have?
16
1
6
0
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