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May 4

Authored by Teresa Schittone

Chemistry

8th - 12th Grade

Used 1+ times

May 4
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10 questions

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1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

A decomposition reaction can be represented as _____________________.

AB  → A + B
A + B → AB
AB + CD → AC + BD
A + BC → B + AC

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

A chemical change in which a single compound breaks down into two or more simpler products is called a ______________________.

single-replacement reaction
synthesis reaction
double-replacement reaction
decomposition reaction

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

This chemical equation for mercury oxide is an example of what type of reaction?
2HgO  → 2Hg + O2

decomposition reaction
synthesis reaction
combustion reaction
Marvin the Martian reaction

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

A chemical change in which two or more substances react to form a new substance is a ____________________________.

decomposition reaction
synthesis reaction
double displacement reaction
combustion reaction

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

A synthesis reaction can be represented as ________________________.

AB + CD → AC + BD
AB → A + B
A + B → AB
A + BC → B + AC

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Which of the following is an example of synthesis?

Na + Br--> NaBr
KClO--> KCl + O2
HgO + Cl2-->HgCl + O2
Cl2 + NaBr --> NaCl + Br2

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

What is decomposition?

putting substances together
breaking substances apart
element replacing another element in a compoud
burning of a subtance

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