Balancing Equations
8th Grade
•16 Qs
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Balancing Equations
Quiz
•
Science
•
8th Grade
•
Hard
+1
Standards-aligned
Lisa Thompson
FREE Resource
16 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which of the following is the correctly balanced equation for the combustion of methane?
@@ ext{CH}_4 + ext{O}_2 ightarrow ext{CO}_2 + ext{H}_2 ext{O}@@
@@ ext{CH}_4 + 2 ext{O}_2 ightarrow ext{CO}_2 + 2 ext{H}_2 ext{O}@@
@@ ext{CH}_4 + ext{O}_2 ightarrow ext{CO}_2 + 2 ext{H}_2 ext{O}@@
@@ ext{CH}_4 + 2 ext{O}_2 ightarrow ext{CO}_2 + ext{H}_2 ext{O}@@
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the coefficient of oxygen when balancing the equation for the reaction of hydrogen and oxygen to form water?
1
2
3
4
Tags
NGSS.MS-PS1-5
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
In the balanced equation @@ ext{N}_2 + 3 ext{H}_2 ightarrow 2 ext{NH}_3@@, what is the ratio of hydrogen molecules to ammonia molecules?
1:1
2:3
3:2
3:1
Tags
NGSS.HS-PS1-7
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which of the following represents a balanced chemical equation for the decomposition of water?
@@ ext{H}_2 ext{O} ightarrow ext{H}_2 + ext{O}_2@@
@@2 ext{H}_2 ext{O} ightarrow 2 ext{H}_2 + ext{O}_2@@
@@2 ext{H}_2 ext{O} ightarrow ext{H}_2 + ext{O}_2@@
@@ ext{H}_2 ext{O} ightarrow 2 ext{H}_2 + ext{O}_2@@
Tags
NGSS.MS-PS1-5
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
When balancing the equation @@ ext{Fe} + ext{O}_2 ightarrow ext{Fe}_2 ext{O}_3@@, what is the coefficient of iron (Fe)?
1
2
3
4
Tags
NGSS.MS-PS1-5
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
3
4
5
6
Tags
NGSS.HS-PS1-7
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which of the following is a balanced equation for the reaction of sodium with water?
@@ ext{Na} + ext{H}_2 ext{O} ightarrow ext{NaOH} + ext{H}_2@@
@@2 ext{Na} + 2 ext{H}_2 ext{O} ightarrow 2 ext{NaOH} + ext{H}_2@@
@@2 ext{Na} + ext{H}_2 ext{O} ightarrow ext{NaOH} + ext{H}_2@@
@@ ext{Na} + 2 ext{H}_2 ext{O} ightarrow 2 ext{NaOH} + ext{H}_2@@
Tags
NGSS.MS-PS1-2
NGSS.MS-PS1-5
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