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gayaneshka [121]
2 years ago
6

What are 5 of the critical events in evolution that occurred in the Paleozoic era?!!

Chemistry
1 answer:
soldi70 [24.7K]2 years ago
5 0

Answer:

Cambrian, Ordovician, Silurian, Devonian, Carboniferous, and Permian

Explanation:

These all occurred in the paleozoic Era I hope you do great good luck <3

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What is the volume of 1.56 kg of a compound whose molar mass is 81.86 g/mole and whose density is 41.2 g/ml?
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Answer:

v = 37.9 ml

Explanation:

Given data:

Mass of compound = 1.56 kg

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Solution:

First of all we will convert the mass into g.

1.56 ×1000 = 1560 g

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D=m/v

D= density

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v =  1560 g / 41.2 g/ml

v = 37.9 ml

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