The eighth planet from the sun the outermost of gas planets please help

1 answer:

3 0

Answer: Neptune
Explanation: think about the phrase
My Very Eager Mother Just Served Us Nachos

(Mercury, Venus, earth, Mars, Jupiter, Saturn, Uranus, Neptune)

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Given the following information:

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Step by Step Explanation

From the question,
the dimensions of the tank are;

L = 30 cm, way =0.075m and H = 15 cm

The density of water is given as
$D = 1g {cm}^{ - 3}$

The unit of density given in the question means that the mass of the water is in grams and the volume should also be in
${cm}^{3}$

To find the volume of the water, we first convert the units of dimensions given in inches and metres to centimetres

$1 inch = 2.54 cm$

This implies that ,

$H=15 inches=15×2.54cm=38.1cm$

Also,

$100cm=1m$

This implies that,
$w= \frac{0.075}{100 } = 7.5 \times {10}^{ - 4} cm$

Now, the volume of water in the tank can hold, can be found from the relation;

$V=L\times W\times H$

This implies that,

$v = 30cm \times (7.5 \times {10}^{ - 4} )cm \times 38.1cm$

$v = 0.857 {cm}^{3} \: to \: 3 \: d.p$

Finally, we can calculate the mass of the water from the relation given;

$D=\frac{M}{V}$

This in implies that

$1g {cm}^{ - 3} = \frac{m}{0.857 {cm}^{3} }$
$m = 1g {cm}^{ - 3} \times 0.857 {cm}^{3}$
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Hence the fish tank can hold 0.857g water.

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Answer:

Explanation:

22.4 L is the same as 1 mol.

Diatomic nitrogen has a formula mass of 28.01 g/mol, so the answer is d.

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