Chemical and Nuclear Reactions Review

Chemical and Nuclear Reactions Review

6th - 12th Grade

23 Qs

quiz-placeholder

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Chemical and Nuclear Reactions Review

Chemical and Nuclear Reactions Review

Assessment

Quiz

Science

6th - 12th Grade

Practice Problem

Medium

NGSS
MS-PS1-5, HS-PS1-8, MS-PS1-2

+6

Standards-aligned

Used 187+ times

FREE Resource

23 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

A chemical equation that shows the same number of each kind of atom on both sides of the equation is said to be

balanced.

unbalanced.

an incomplete reaction.

a replacement reaction.

Tags

NGSS.MS-PS1-5

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

In a chemical equation, numbers often appear in front of a chemical formula. These numbers tell you the

number of atoms in each molecule in the reaction.

number of elements in the reaction.

number of molecules or atoms of each substance in the reaction.

number of molecules in each atom in the reaction.

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

This is an unbalanced equation representing a chemical reaction: HgO --> Hg + O2


Which equation below is the correctly balanced chemical equation for this reaction?

HgO --> Hg + 2O2

2HgO --> Hg + O2

2HgO --> 2Hg + O2

2HgO --> Hg + 2O2

Tags

NGSS.MS-PS1-5

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Which of the following is a balanced chemical equation?

H2O2 --> H2O + O2

2 Fe2O3 + 3 C --> 4 Fe + 3 CO2

SO2 + O2 + 2 H2O --> 4 H2SO4

2 Mg + HC1 --> MgCl2 + H2

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

In chemical reactions, what does the principle of conservation of mass mean?

The total mass of the reactants is equal to the total mass of the products.

The total mass of the reactants is greater than the total mass of the products.

The total mass of the reactants is less than the total mass of the products.

Matter is not changed.

Tags

NGSS.MS-PS1-5

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

A bottle of hydrogen peroxide that eventually turns into a bottle of water and oxygen gas is an example of a

synthesis reaction.

decomposition reaction.

replacement reaction.

precipitate reaction.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

When one element replaces another element in a compound, the reaction is a ____ reaction.

composition

decomposition

single replacement

double replacement

Tags

NGSS.MS-PS1-2

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