Word Chemical Equations

Word Chemical Equations

9th Grade - University

10 Qs

quiz-placeholder

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Word Chemical Equations

Word Chemical Equations

Assessment

Quiz

Chemistry

9th Grade - University

Practice Problem

Hard

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

+4

Standards-aligned

Created by

Charles Martinez

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

When a CHEMICAL reaction occurs, what is made?

No new substance is made.
A new substance is made with new atoms formed
A new substance is made, with existing atoms rearranged
All substances remain the same, but physical state may change.

Tags

NGSS.HS-PS1-7

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

What does this word equation represent: Iron + oxygen → Iron (III) oxide

A physical change in iron (nothing new gets made)

A chemical reaction between iron and oxygen, where rust (iron oxide) is produced

A chemical reaction between iron and rust, where oxygen is produced

A physical change between iron and oxygen that forms a red color

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

Magnesium can be burned in air to produce solid magnesium oxide.

2Mg(s) + O2(g)→ 2MgO(s)
Mg(s) + O(g) → MgO(s)
2Mg(s) + CO2(g) → 2MgO(s) + C(s)
2Mg(s) + O2(g) → Mg2O2(s)

Tags

NGSS.HS-PS1-2

NGSS.HS-PS1-4

NGSS.HS-PS1-7

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

Sodium reacts with chlorine to produce sodium chloride.

NaCl(s) → Cl(g) + Na(s)
Na(s) + CO2(g) → NaCO2(s)
2Na(s) + Cl2(g) → 2NaCl(s)
Na(s) + Cl(g) → NaCl

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

NGSS.HS-PS1-4

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

Iron reacts with sulfur to produce iron (II) sulfide powder.

2Fe(s) + S(s) → Fe2S(s)

Fe(s) + S(s) → FeS(s)

Fe(s) + S(g) → FeS(s)

4Fe(s) + S2(g) → 2Fe2S

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

When lead reacts with oxygen, a yellow lead (II) oxide powder is produced.

2Pb(s) + O2(g) → 2PbO(s)

Pb(s) + O2(g) → PbO2(aq)

4Pb(s) + O2(g) → 2Pb2O(g)

Pb(s) + O(g) → PbO(s)

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-2

NGSS.MS-PS1-5

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

When hydrogen reacts with sulfur, a smelly gas is produced:

H2(g) + 2S(s) → 2HS
H2(g) + S(s) → H2S(g)
H(g) + S(s) → HS(g)
2H(g) + S(s) → H2S(g)

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