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Chemical reaction

Authored by Uttam Subedi

Chemistry

9th - 10th Grade

NGSS covered

Used 10+ times

Chemical reaction
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20 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which general formula shows decomposition reaction?

A+B -> AB

AB -> A + B

AB + C -> AC + B

AB + CD -> AD + CB

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is two or more substances that are together in the same place but their atoms are not chemically bonded.

Mixture

Solution

Colloid

Suspension

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What type of reaction is the following:
 2H2+O2>2H2O2H_2+O_2->2H_2O  

Combination

Decomposition

Single Replacement

Double Replacement

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

_Al + _HCl →_H2 + _AlCl3

2 Al + 2 HCl → 2 H2 + 6 AlCl3
3 Al + 3 HCl → 6 H2 + 2 AlCl3
1 Al + 1 HCl → 3 H2 + 1 AlCl3
2 Al + 6 HCl → 3 H2 + 2 AlCl3

Tags

NGSS.MS-PS1-5

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What type of reaction is the following:
 BaCl2+2KI > 2KCl + BaI2BaCl_2+2KI\ ->\ 2KCl\ +\ BaI_2  

Combination

Decomposition

Single Replacement

Double Replacement

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What type of reaction is the following:
 2KI > 2K + I22KI\ ->\ 2K\ +\ I_2  

Combination

Decomposition

Single Replacement

Double Replacement

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What type of reaction is the following:
 2NaHCO3> Na2CO3+CO2+H2O2NaHCO_3->\ Na_2CO_3+CO_2+H_2O  

Combination

Decomposition

Single Replacement

Double Replacement

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