Becoming a Chemist Lesson 2 Quiz Review Game

How many atoms of iron are in 3FeCl₃

• 2

• 1

• 3

• 4

Tags

NGSS.MS-PS1-1

How many atoms of oxygen are in Al(C₂H₃O₂)2

• 1

• 4

• 2

• 3

Tags

NGSS.MS-PS1-1

____ is a number added to a compound in a chemical equation in order to balance it.

• compound

• coefficient

• molecule

• subscript

Select the equation that is balanced?

• Al₂O₃-->Al + O₂

• 2Al₂O₃-->Al + 3O₂

• 2Al₂O₃-->4Al + 3O₂

Tags

NGSS.MS-PS1-5

Which equation demonstrates that mass is not created or destroyed?

• C + 3H₂ --> CH₄

• C + 2H₂ --> CH₄

• C + H₂ --> CH₄

Tags

NGSS.MS-PS1-5

True or False: To balance a chemical equation you change the subscripts to make the number of atoms on boths sides of the equation equal.

• True

• False

Tags

NGSS.HS-PS1-7

A pure substance that contains two or more elements is __

• compound

• reactant

• chemical equation

• product

Tags

NGSS.MS-PS1-1

substance that forms as a result of a chemical reaction

• compound

• reactant

• chemical equation

• product

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

shorthand for writing what reactants are used and what products are formed in a chemical reaction

• compound

• reactant

• chemical equation

• product

substance that exists before a chemical reaction begins

• compound

• reactant

• chemical equation

• product

Tags

NGSS.MS-PS1-5