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Mole Concept Worksheet

Explore the mole concept in chemistry with this Grade 7 worksheet covering atomic mass, Avogadro's number, and calculations.

Grade 7 Science ChemistryMole Concept
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Includes

Multiple ChoiceFill in the BlanksShort AnswerTrue / FalseCustom

Standards

NGSS.MS-PS1-1NGSS.MS-PS1-2

Topics

ChemistryMole ConceptAtomsMoleculesGrade 7
7 sections · Free to use · Printable
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Mole Concept Review

Name:

Date:

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Read each question carefully and answer to the best of your ability. Show all your work for calculation problems.

1. What is the approximate value of Avogadro's number?

a

6.02 x 10^22

b

6.02 x 10^23

c

1.00 x 10^23

d

1.00 x 10^22

2. The atomic mass unit (amu) is approximately equal to the mass of which subatomic particle?

a

Electron

b

Proton

c

Neutron

d

Both proton and neutron

3. One mole of any substance contains   particles.

4. The molar mass of an element is numerically equal to its   expressed in grams per mole.

5. Explain in your own words what the 'mole concept' is in chemistry.

6. The atomic mass of an element is the weighted average mass of its isotopes.

T

True

F

False

7. If you have 3 moles of water (H₂O), how many water molecules do you have? (Atomic mass of H = 1 amu, O = 16 amu)