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5.2 Balancing Chemical Equations - Printable Science Worksheets grade 10 - Wayground

5.2 Balancing Chemical Equations

Brent Nenadal

Created by Brent Nenadal

10 questions

10th Grade

Science

The Grade 10 Science worksheet “5.2 Balancing Chemical Equations” gives students focused practice with the vocabulary, structure, and reasoning used to balance chemical equations. Across 10 multiple-choice questions, students identify the Law of Conservation of Mass, coefficients, subscripts, reactants, and products; distinguish elements from compounds; count the elements represented in a formula; select a coefficient for a simple equation; and decide whether equations are balanced. This free printable worksheet with an answer key is designed for Grade 10 science instruction, guided practice, review, or formative assessment. Its progression from foundational terminology to coefficient selection and balance-checking helps teachers see whether students understand both what the parts of an equation mean and how those parts support conservation of mass. The multiple-choice format makes it practical for independent work, partner discussion, or a quick classroom check before students move to more complex balancing problems.

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5.2 Balancing Chemical Equations

Total questions: 10

Name
Class
Date
1.

What is the Law of Conservation of Mass?

a)

It states that matter cannot be created or destroyed.

b)

It states that energy cannot be created or destroyed.

c)

It states that matter can be created or destroyed.

d)

It states that sound can be created or destroyed.

2.
What is a coefficient?
a)
The small number on the right of the chemical symbol.
b)
The large number in front of a chemical formula.
c)
The number in between the chemical symbols.
d)
The number behind a chemical formula.
3.
What is the part of the chemical equation in green called? 
Fe + S --> FeS
a)
products
b)
reactants
c)
yield
d)
chemical formula
4.
What is the little number after an element in a chemical equation called.
Example: H2
a)
Coefficient 
b)
Subscript
c)
Atom
d)
Equation
5.
What coefficient should be used to make the following equation balanced?
N2+O2--> _NO 
a)
1
b)
2
c)
3
d)
4
6.
How many elements are in C6H12O6?
a)
1
b)
2
c)
3
d)
4
7.
Element or compound?
H2O
a)
element
b)
compound
8.
Is this balanced?
Al + O2 → 2Al2O3
a)
Yes
b)
No
9.

Is the equation balanced?: 2H2O + O2 --> 4MgO + 3Fe

a)

yes

b)

no

10.
What is the right part of a chemical equation called...
2H2 + O2 --> 2H2O
a)
Reactants
b)
Products 
c)
Yields 
d)
Chemical Equation 
WaygroundAnswer Key

5.2 Balancing Chemical Equations

Total questions: 10

1.
a)

It states that matter cannot be created or destroyed.

2.
b) The large number in front of a chemical formula.
3.
b) reactants
4.
b) Subscript
5.
b) 2
6.
c) 3
7.
b) compound
8.
b) No
9.
b)

no

10.
b) Products 

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FAQs

What does this worksheet cover about balancing chemical equations?

This Grade 10 worksheet uses 10 multiple-choice questions to build foundational balancing skills: students identify coefficients, subscripts, reactants, and products; apply the Law of Conservation of Mass; distinguish elements from compounds; and check whether equations are balanced. It also includes a simple coefficient-selection problem, helping students connect equation vocabulary to the numbers used when balancing.

How can I use this worksheet to teach chemical equation vocabulary and balance checking?

Introduce the worksheet by reviewing that coefficients can change while subscripts identify the atoms within a formula, then have students explain the difference between reactants and products. Use the multiple-choice items as a sequence: discuss the vocabulary and formula-reading questions first, model counting atoms, and finish by asking students to justify their answers to the coefficient and balanced-or-not questions.

What mistakes should I watch for when students complete this chemical equations worksheet?

Watch for students confusing a coefficient with a subscript, or labeling the left side of an equation as products instead of reactants. Students may also count subscripts rather than distinct elements in a formula, classify H₂O as an element, or decide an equation is balanced without comparing the number of each element on both sides.

How do I assign and grade this balancing chemical equations worksheet?

The worksheet is available as a printable PDF and as a digital quiz on Wayground, and it includes a complete answer key for all 10 multiple-choice questions. You can grade printable submissions by scanning student work with the Wayground for Teachers app, or use the digital quiz for online responses and results.

How can I differentiate this chemical equations worksheet for my students?

In the worksheet’s Advanced Settings, adjust font spacing or choose a larger font size to make the chemical formulas, subscripts, and answer choices easier to read. You can also enable a dyslexia-friendly font or translate the worksheet into another language when that better supports students working through its multiple-choice equation vocabulary and balance-checking items.

Where can I find more worksheets like this on Wayground?

Wayground offers a comprehensive collection of free printable worksheets and practice problems across subjects, with downloadable PDFs and answer keys to support essential skills and concepts. Browse more resources at https://wayground.com/en-us/worksheets.

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