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3 years ago

1. The ocean is also known as Earth's _____. *

Chemistry

2 answers:

Ad libitum [116K]3 years ago

8 0

D. none off they above because the ocean isnt a cloud it doesn’t collect things and its not condensed

Karolina [17]3 years ago

4 0

Answer:

Earth is often called the ocean planet because it is 70% covered in water.

Explanation:

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Which part of the crust is the thickest

Sergio039 [100]

Answer:

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Explanation:

If you mean the Earth's crust, your answer is The Mantle.

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3 years ago

Select the options that are properties of electromagnetic waves:

kaheart [24]

Answer:

They propagate in materialistic media and non-materialistic media ( space ) .

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Explanation:

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3 years ago

A chemist mixes 500 g of lead at 500°c with 1,200 g of water at 20°c. she then mixes 500 g of copper at 500°c with 1,200 g of wa

Artemon [7]

The final temperature of the lead-water system will be lower than the final temperature of the copper-water system.

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4 years ago

Help please !!!

castortr0y [4]

Kinetic energy is the correct answer for this question

4 0

3 years ago

A vessel of volume 100ml contains 10% of oxygen and 90% of an unknown gas. The gases diffuses in 86 second through a small hole

swat32

The molecular weight of unknown gas : 23.46 g/mol

<h3>Further explanation</h3>

Given

A vessel contains 10% of oxygen and 90% of an unknown gas.

diffuses rate of mixed gas = 86 s

diffuses rate of O₂ = 75 s

Required

the molecular weight of unknown gas (M)

Solution

The molecular weight of mixed gas :(M O₂=32 g/mol)

$\tt 0.1\times 32+0.9\times M=3.2+0.9M$

Graham's Law :

$\tt \dfrac{r_{O_2}}{r_{mixed~gas}}=\sqrt{\dfrac{M_{mixed}}{M_{O_2}} }\\\\\dfrac{75}{86}=\sqrt{\dfrac{3.2+0.9M}{32} }\\\\0.76=\dfrac{3.2+0.9M}{32}\\\\24.32=3.2+0.9M\\\\21.12=0.9M\rightarrow M=23.46~g/mol$

7 0

3 years ago