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TGS Moles Mass and Balancing Equations JBI

Last updated about 5 years ago

4 questions

1

Question 1

1.

When copper metal reacts with oxygen, black copper oxide, CuO, is formed.
6.35g of copper reacted with 1.60g of oxygen gas O2, to form 7.95g of copper oxide
a). Calculate the number of moles of each reactant and product

1

1

1

Question 2

2.

Show the balance equation for the reaction above

Question 3

3.

Extension: If I react 44.6g of lead oxide (PbO) with 1.2g of carbon, I can obtain 41.4g of lead and ?g of carbon dioxide.
how much carbon dioxide is produced?
Ar Pb = 207 Ar O = 16 Ar C = 12

Question 4

4.

If I react 44.6g of lead oxide (PbO) with 1.2g of carbon, I can obtain 41.4g of lead and ?g of carbon dioxide.
Work out how much carbon dioxide is produced.
Write the balanced symbol equation for this reaction.