The cycle of copper reactions starts with solid copper metal and ends with solid copper metal. Suppose you start with 0.502 g of Cu. After performing all the reactions, you have 0.446 g of Cu. What percentage of the copper did you recover?

The percentage copper recovered is  88.8%.

When metals are obtained from their ore, they are usually passed through a process of purification called extraction. This remove impurities leaving a lesser mass of pure metal.

From the information in the question;

Initial amount of Cu = 0.502 g

Final amount of Cu = 0.446 g

We know that percentage of copper recovered = final amount of copper/initial amount of copper × 100/1

substituting the values we have;

percentage of copper recovered = 0.446 g /0.502 g × 100/1

= 88.8%

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percentage of the copper recovered is 88.8 %

Explanation:

Given : Initial amount of copper = 0.502 g

Recovered amount of copper = 0.446 g

percentage of copper recovered =

Putting in the values :

percentage of copper recovered =

Thus percentage of the copper recovered is 88.8 %

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here is table 2-2:

country

percent of eligible voters that voted

rank

united states

44.9%

138

canada

60.1%

107

costa rica

84.6%

14

hungary

66.9%

82

japan

57.0%

118

egypt

27.7%

159

south africa

85.5%

10

ans is no, the data set cannot be plotted as a single circle graph