Question

C + 2ZnO  CO2 + 2Zn
How many grams of
carbon dioxide will be
produced if 135 grams
of ZnO is completely
reacted?

Answer 1

Answer:

many grams of carbon dioxide will be produced if 135 grams of ZnO is completely reacted

Explanation:

Hope this answer will help u

Mark my answer as brainliest answer

Answer 2

Answer:

2.10 g

Start by writing the balanced chemical equation that describes this decomposition reaction

ZnCO

3

(

s

)

→

ZnO

(

s

)

+

CO

2

(

g

)

↑

⏐

Zinc carbonate undergoes thermal decomposition to produce zinc oxide and carbon dioxide. As you can see, all the compounds that take part in the reaction do so in  

1

:

1

mole ratios to each other.

Simply put, when  

1

mole of zinc carbonate undergoes decomposition,  

1

mole of zinc oxide and  

1

mole of carbon dioxide are produced.

The problem provides you with grams of zinc carbonate, so the next thing to do is to convert the grams to moles by using the compound's molar mass.

6.25

g

⋅

1 mole ZnCO

3

242.18

g

=

0.02581 moles ZnCO

3

Now, the reaction produces zinc oxide in a  

1

:

1

mole ratio to zinc carbonate, which means that you will end up with

0.02581

moles ZnCO

3

⋅

1 mole ZnO

1

mole ZnCO

3

=

0.02581 moles ZnO

Finally, to convert this to grams, use the compound's molar mass

0.02581

moles ZnO

⋅

81.38 g

1

mole ZnO

=

2.10 g

−−−−−

hope it helps u