Balancing Equations Basic

Balancing Equations Basic

8th Grade

25 Qs

quiz-placeholder

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Balancing Equations Basic

Balancing Equations Basic

Assessment

Quiz

Science

8th Grade

Hard

NGSS
MS-PS1-5, HS-PS1-7, MS-PS1-2

+2

Standards-aligned

Created by

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

Media Image

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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