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Retake Conservation of Matter and Balancing Equations

Authored by Melissa Cox

Science

9th - 12th Grade

NGSS covered

Retake Conservation of Matter and Balancing Equations
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12 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

The number in front of a compound or element is a 

Subscript
Coefficient
Superscript
Charge

2.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Media Image

Is this equation balanced?

yes
no
Not enough information

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-2

3.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

What is the Law of Conservation of mass?

Mass is created in a chemical reaction
Mass is created in a physical change
New chemicals formed from a chemical reaction have a larger overall mass than the original reactants
Mass is never created or destroyed

Tags

NGSS.MS-PS1-5

4.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Number written below & to the right of a chemical symbol

subscript
reactant
product
coefficient

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Substances that form as the result of a chemical reaction

products
reactants
coefficients
subscripts

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-2

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Substances present at the start of a chemical reaction

subscripts
coefficients
reactants
products

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-2

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Which are the reactants in the following reaction?
2Mg + O2 ---> 2MgO 

Mg and O
MgO
Mg and MgO
O and MgO

Tags

NGSS.MS-PS1-2

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