Balancing Equations Basic

Quiz
•
Science
•
8th Grade
•
Hard
+2
Standards-aligned
Lisa Thompson
FREE Resource
25 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the little number after an element in a chemical equation called.
Example: H2
Coefficient
Subscript
Atom
Equation
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Is the following equation balanced?...
Al + O2 --> 2Al2O3
Yes!
No!
Tags
NGSS.MS-PS1-5
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What are the larger numbers that you CAN CHANGE in a chemical equation?
Coefficient
Products
Reactants
Subscripts
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
How many HCl molecules do you need to balance this equation?
Mg + __HCl ---> MgCl2 + H2
1
2
3
4
Tags
NGSS.MS-PS1-5
5.
DRAG AND DROP QUESTION
1 min • 1 pt
The numbers placed in (a) of formulas to balance equations are called (b) , and they multiply all the atoms in a (c) . Thus, the symbol “2NaHCO₃” indicates (d) units of sodium bicarbonate, which contain 2 Na atoms, 2 H atoms, 2 C atoms, and 6 O atoms
(2 X 3= 6, the coefficient times the subscript for O).
front
coefficients
two
formula
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What coefficient should be used to make the following equation balanced?
N2+O2--> _NO
1
2
3
4
Tags
NGSS.MS-PS1-5
7.
DRAG AND DROP QUESTION
1 min • 1 pt
(a) S8 + (b) O4 → (c) SO2
1
4
8
Tags
NGSS.MS-PS1-5
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