Answer:
Its b its the state not anything else
1 mol of Br = 79.9 g
15.7 g / 79.9 g = 0.196 moles of atoms
"One has more oxygen atoms than the other" best distinguishes carbon dioxide from carbon monoxide
<u>Explanation</u>:
In both carbon monoxide and carbon dioxide, there is the presence of carbon and oxygen. However,they vary depending on the number of oxygen atoms.In carbon monoxide, there is the presence of one only carbon and oxygen atom. Thus carbon monoxide is chemically represented as CO. Only about 0.2%ppm of carbon monoxide present in air. carbon monoxide is toxic and causes death in human when not consumed is correct proportion.
Whereas in carbon dioxide, only one carbon atom,and two oxygen atom and hence chemically represented as co2.
Answer:
C. 63.3%
Explanation:
Theoretical yield = 47.2g
Actual yield = 29.9g
Percentage yield = ?
The percentage yield of a compound after chemical synthesis is the ratio of the actual yield to the theoretical yield multiplied by 100.
Percentage yield = (actual yield / theoretical yield) × 100
Percentage yield = (29.9 / 47.2) × 100
Percentage yield = 0.6334 × 100
Percentage yield = 63.34%
The percentage yield of Fe is 63.34%
