Coefficients

H₂O
This number tells how many molecules are in a chemical equation.

• coefficient

• subscript

• compound

• element

• 5

• 2

• 3

• 1

In this chemical formula, which number represents the coefficient (the number of molecules)?

• 2

• 6

• 12

• 1

Which formula below could represent 7 molecules of ammonia?

Tags

NGSS.MS-PS1-1

In the following expression, the number 7 is an example of a ____________?

5x³ - 7x + 11

• term

• constant

• coefficient

• variable

What are the large numbers at the beginning of a molecule called (they are red in the image)?

• Subscripts

• Coefficients

• Numbers

• Molecules

A coefficient is __________.

• the variable

• a constant

• an exponent

• the number that comes before the variable

What is the number before a chemical formula called?
Ex: 2H₂ + O₂ --> 2H₂O

• Coefficient

• Subscript

• Atom

• Equation

What is the coefficient:

4 - 2y

• 2

• 4

• -2

• 0

What is the coefficient of x?
8 + 5x - y

• 8

• 0

• 5

• -5