Balancing Equations Quiz

What is the process by which one or more substances are changed into one or more different substances?

• chemical equation

• change in state

• physical change

• chemical reaction

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What happens during a chemical reaction?

• new elements are created

• atoms are destroyed

• atoms are rearranged

• elements are destroyed

Tags

NGSS.HS-PS1-7

• Mg

• FeCl₃

• Fe

• MgCl₂

What is the whole number that appears in front of a formula in a chemical equation?

• a coefficient

• an exponent

• a subscript

• a superscript

Tags

NGSS.MS-PS1-5

How many hydrogens are in 2NH₄CH₃COO?

• 3

• 4

• 7

• 14

What symbol is used to represent the phrase “reacts with” in a chemical equation?

• an arrow

• a plus sign

• a coefficient

• an equal sign

• Mg

• FeCl₃

• Fe

• MgCl₂

Tags

NGSS.MS-PS1-2

How many atoms of oxygen are represented in 2Ca(NO₃)₂?

• 4

• 6

• 10

• 12

Tags

NGSS.MS-PS1-1

• 3

• 4
• 2
• 5
• 1

• 4

• 2
• 3
• 1
• 6