Hmh Chemistry

Hmh Chemistry

6th - 8th Grade

13 Qs

quiz-placeholder

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Hmh Chemistry

Hmh Chemistry

Assessment

Quiz

Science

6th - 8th Grade

Hard

NGSS
MS-PS1-5, MS-PS1-2, HS-PS1-7

+1

Standards-aligned

Created by

Charles Martinez

FREE Resource

13 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

When wood is burned, the mass of the remaining ash is less than the mass of the original wood. Which statement best explains this result?
   The ash has less volume than the paper.
Some of the matter is destroyed during the reaction.
The mass of the ash cannot be accurately determined.
Some of the products of the reaction were given off as a gas.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

2.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Which substance is a product in this reaction?
2 HCl + CaCO3 = CaCl2 + H2O + CO2
2 HCl
CaCO3 
CaCl2
C

Tags

NGSS.MS-PS1-2

3.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Which is a balanced chemical equation?
CH4 + 2 O2 = CO2 + 2 H2O
2CH4 + 2 O2 = CO2 + 2 H2O
CH4 + O2 = CO2 + 2 H2O
CH + 2 O2 = CO2 + 2 H2O

Tags

NGSS.MS-PS1-5

4.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Which number completes the balanced chemical equation? 
4 Fe + ____ O2 = 2 Fe2O3
2
1
3
4

Tags

NGSS.MS-PS1-5

5.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

What does a letter represent in a chemical equation/formula? (ex. H₂O)
Element
Number of Atoms
Number of compounds
A chemical formula

6.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

What are the small numbers in a chemical equation called? (ex H₂O)
Exponents
Subscripts
Elements
Coefficients

7.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

What are the big numbers in a chemical equation called? (2H₂O)
Subscripts
Exponents
Elements
Coefficients

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