Balancing Equations

Balancing Equations

By Manal Sharaf

Multiple Select

• a.Double the coefficient of N2 ( 2 N2 )

• b.Multiply coefficient  of H2 by 3 ( 3 H2 )

• c.Multiply subscripts  of H2 by 3 ( H6 )

• d.Double the subscripts for NH3 ( N2H6)

• e.Double the coefficient of NH3   ( 2 NH3)

Multiple Choice

Which of these chemical formulas describes the contents of the box above?

• $$a.4SH_2$$  

• $$b.(SH_2)_4$$  

• c.Both A and B

• d.Neither A nor B

Multiple Choice

• A

• B

• C

• D

Multiple Choice

What is the coefficient of Zn(NO)3 that you should write in order to balance the following equation

Zn(s)  + HNO3(aq) -> Zn(NO3)2(aq) + H2(g)

• 1

• 2

• 3

• 4

Multiple Choice

After you balance this equation, what is the final coefficient in front of O2

• 2

• 3

• 4

• 5