PS8.1.3/PS8.1.5 Review

PS8.1.3/PS8.1.5 Review

8th Grade

30 Qs

quiz-placeholder

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PS8.1.3/PS8.1.5 Review

PS8.1.3/PS8.1.5 Review

Assessment

Quiz

Science

8th Grade

Medium

NGSS
MS-PS1-5, MS-PS1-2, MS-PS1-1

+1

Standards-aligned

Created by

Destenee ApexFriendshipMS

Used 1+ times

FREE Resource

30 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

In the chemical formula H₂O, what does the subscript "2" indicate?

a) There are 2 oxygen atoms.

b) There are 2 hydrogen atoms.

c) There are 2 water molecules.

d) There are 2 water atoms.

Tags

NGSS.MS-PS1-1

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Which of the following is the correct way to balance the equation below?

H₂ + O₂ → H₂O

a) H₂ + O₂ → H₂O

b) 2H₂ + O₂ → 2H₂O

c) 2H₂ + 2O₂ → H₂O

d) H₂ + 2O₂ → 2H₂O

Tags

NGSS.MS-PS1-5

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

How many oxygen (O) atoms are there in the compound CaCO₃?

a) 1

b) 2

c) 3

d) 4

Tags

NGSS.MS-PS1-1

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

What is the total number of atoms in the molecule C₂H₆?

a) 2

b) 6

c) 8

d) 12

Tags

NGSS.MS-PS1-1

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Which of the following equations is balanced?

a) C + O₂ → CO

b) 2Na + Cl₂ → 2NaCl

c) CH₄ + O₂ → CO₂ + 2H₂O

d) H₂ + O₂ → H₂O

Tags

NGSS.MS-PS1-5

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

In a chemical reaction, what does a coefficient in front of a molecule indicate?

a) How many atoms are in the molecule

b) How many molecules are present

c) The number of subscripts

d) The number of bonds in the molecule

Tags

NGSS.HS-PS1-7

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

The law of conservation of mass states that:

a) Mass can be created and destroyed in chemical reactions.

b) The total mass before and after a chemical reaction remains the same.

c) Atoms are destroyed during a chemical reaction.

d) Mass is transferred between reactants and products.

Tags

NGSS.MS-PS1-5

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