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Chemical Reactions Review

Authored by Brendan Barrow

Chemistry

9th - 12th Grade

NGSS covered

Used 14+ times

Chemical Reactions Review
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40 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Balance the following equation:

__Na + __MgF₂ →__ NaF + ___Mg

3Na + 2MgF₂ → 2NaF + Mg

2Na + MgF₂ → 2NaF + Mg

Na + 2MgF₂ → 2NaF + Mg

2Na + MgF₂ → 3NaF + Mg

Tags

NGSS.HS-PS1-7

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Balance the following equation:


__Mg +__ HCl →__ MgCl₂ +__ H₂

2Mg +2HCl → 3MgCl₂ + H₂

Mg + 2HCl → MgCl₂ + H₂

2Mg + 3HCl → MgCl₂ + H₂

4Mg + 4HCl → 3MgCl₂ + 2H₂

Tags

NGSS.MS-PS1-5

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are the products of this equation: 4P + 5O₂→P₄O₁₀

P + O₂

P

O

P₄O₁₀

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are the reactants of this equation: 4P + 5O₂→P₄O₁₀

4P + 5O₂

P₄O₁₀

P₄O₁₀ + 4P

P + O

Tags

NGSS.MS-PS1-2

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

When a chemical reaction occurs, the reaction will create new substances. These new substances are called _______________.

Resultants

Reactants

Coefficients

Products

Tags

NGSS.MS-PS1-5

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The formula AB ------> A + B shows an example of which type of chemical reaction?

decomposition reaction

single displacement reaction

synthesis reaction

double displacement reaction

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Coefficients are which of the following?

numbers that precede symbols and formulas in a chemical equation

small numbers that follow a symbol or formula in a chemical equation. They are located slightly lower than the symbols they accompany.

small numbers that follow a symbol or formula in a chemical equation. They are located slightly higher than the symbols they accompany.

None of the above

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