Balancing Chemical Equations

Quiz
•
Science
•
7th - 8th Grade
•
Hard
Standards-aligned
Charles Martinez
FREE Resource
12 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which of the following equations is balanced?
H2 + O2 → H2O
2H2 + O2 → H2O
2H2 + O2 → 2H2O
H2 + O2 → 2H2O
Tags
NGSS.MS-PS1-5
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is the general form of a chemical equation?
Reactants = Products
Products → Reactants
Reactants → Products
Reactants + Products
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
All chemical equations must be balanced?
True
False
Tags
NGSS.MS-PS1-5
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A chemical equation is balanced when the number of each type of ______ is the same on both sides of the equations.
Molecule
Atom
Element
Coefficient
Tags
NGSS.MS-PS1-5
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following rules should you follow to balance chemical equations?
Use the smallest possible subscripts
Add coefficients as needed
Change only the subscripts
All of the above
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which coefficient placed before HCI will balance the following equation? Zn+HCl→ZnCl2 + H2
3
4
2
None of the above
Tags
NGSS.MS-PS1-5
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Is this equation balanced? 2 H2 + O2 → 2 H2O
True
False
Tags
NGSS.MS-PS1-5
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