09. Balancing Equations
Authored by John Groll
Chemistry
10th - 12th Grade
NGSS covered
Used 206+ times
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25 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The red numbers in the image below represent ________
subscripts
coefficients
oxidation numbers
None of the answers are correct
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The blue numbers in the image below represent ________
oxidation numbers
coefficients
subscripts
none of the answers are correct
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The original substances before a chemical reaction are called the ____
product
yield
chemical symbol
reactants
Tags
NGSS.MS-PS1-1
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
In the equation, 2Mg + O2 ---> 2MgO, which are the reactants?
Mg and O2
MgO
Mg and MgO
O2 and MgO
Tags
NGSS.MS-PS1-2
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
In a chemical reaction, the new substances formed are called ______________.
Products
Yields
Molecules
Reactants
Tags
NGSS.MS-PS1-2
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
How many atoms of aluminum are on each side of the following equation: 4Al + 3O2 --> 2Al2 O3
Tags
NGSS.MS-PS1-1
NGSS.MS-PS1-5
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What type of reaction is the following equation?
Fe + S --> FeS
combination
decomposition
single replacement
double replacement
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