Coefficient

Balance the the following equation.

__Zn+__HCl -->__ZnCl₂ +__H₂

• 1,1,2,1

• 1,1,1,2

• 1,2,1,1

• 2,1,1,1

Tags

NGSS.MS-PS1-5

To balance an equation you should:

• ONLY change subscripts.

• ONLY change coefficients.

• Change BOTH subscripts and coefficients.

How many Nitrogen (N) atoms are in 4NH₃?

• 4

• 1

• 3

• 12

Tags

NGSS.MS-PS1-1

How many Hydrogen (H) atoms are in 4NH₃?

• 4

• 1

• 3

• 12

Tags

NGSS.MS-PS1-1

Is this equation balanced?

• Yes

• No

Tags

NGSS.MS-PS1-5

Is this equation balanced?

• yes

• no

• Not enough information

Tags

NGSS.MS-PS1-5

What is a coefficient?

• the small number on the right of the chemical symbol

• the numbers inside of the parentheses

• the large number to the left of a formula

• the small number to the left of the chemical symbol

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-5

Which of the following best describes a coefficient in a chemical equation?

• A number that indicates the quantity of molecules

• A symbol representing an element

• A letter representing a variable

• A subscript indicating the number of atoms

• The force applied

• The mass of the object

• The acceleration of the object

• The proportionality constant