3 years ago

A simplified version of the Periodic Table of the elements is provided

Chemistry

1 answer:

andrezito [222]3 years ago

8 0

I dont see any options to choose from but im pretty sure its the electron count that the elements have

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Why is alchemy not considered a science

Dima020 [189]

That is because Alchemy is not based on real research and facts, but rather on magic and occultism. Sure, many things in it have been used as basics for some chemistry, but most is false and incorrect.

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Chalcopyrite, the principal ore of copper (Cu), contains 34.63 percent Cu by mass. How many grams of Cu can be obtained from 7.3

DENIUS [597]

Answer:

$2.55\times 10^{6}g$ Cu can be obtained from $7.35\times 10^{3}kg$ ore

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1 kg = 1000 g

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