3 years ago

Students report that the sky in their area has mostly cirrus clouds. What are most likely the weather conditions in the area?

1 answer:

3 0

I believe it is fair, pleasant weather! Cirrus clouds predict fair to pleasant weather and are usually seen in the winter!

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inysia [295]

The percentage composition of this compound : 40%Ca, 12%C and 48%O

<h3>Further explanation</h3>

Given

20.0 g of calcium,

6.0 g of carbon,

and 24.0 g of oxygen.

Required

The percentage composition

Solution

Total mass of compound :

=mass calcium + mass carbon + mass oxygen

=20 g + 6 g + 24 g

=50 g

Percentage composition :

Ca-calcium

$\tt \dfrac{20}{50}\times 100\%=40\%$

C-carbon

$\tt \dfrac{6}{50}\times 100\%=12\%$

O-oxygen

$\tt \dfrac{24}{50}\times 100\%=48\%$

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Explanation:

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a metal with a large number of free-flowing electrons most likely have good conductivity

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