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sveticcg [70]
3 years ago
5

Which season occurs in the northern hemisphere when the sun is at its lowest point in the sky

Chemistry
2 answers:
Eduardwww [97]3 years ago
5 0

Winter because the winter solstice is the point when the sun is at its lowest making it the coldest day of the year

quester [9]3 years ago
4 0

Answer:

The correct answer is winter.

Explanation:

The orientation of the sunrise changes with the seasons. The southernmost sunrise and sunset points occur in the winter solstice. The winter months are the coldest of the year because the reserves of heat and solar energy in the atmosphere and on the Earth's surface are at their lowest point, because the sun is at its lowest point.

Have a nice day!

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What is the mass of 1.75 moles of magnesium atoms
Artemon [7]

Hey there!

Molar mass of magnesium is 24.305.

One mole of magnesium has a mass of 24.305 grams.

We have 1.75 moles.

Multiply 1.75 by 24.305.

1.75 x 24.305 = 42.5

1.75 moles of magnesium has a mass of 42.5 grams.

Hope this helps!

6 0
3 years ago
A solution is made by dissolving 0.565 g of potassium nitrate in enough water to make up 250. mL of solution. What is the molari
aalyn [17]
<h3>Molar mass of Potassium Nitrate:-</h3>

\\ \large\sf\longmapsto KNO_3

\\ \large\sf\longmapsto 39u+14u+3(16u)

\\ \large\sf\longmapsto 53u+48u

\\ \large\sf\longmapsto 101u

\\ \large\sf\longmapsto 101g/mol

Now

\boxed{\sf No\:of\:moles=\dfrac{Given\:mass}{Molar\:mass}}

\\ \large\sf\longmapsto No\:of\:moles=\dfrac{0.565}{101}

\\ \large\sf\longmapsto No\:of\:moles=0.005mol

We know

\boxed{\sf Molarity=\dfrac{Moles\:of\:solute}{Vol\:of\:Solution\:in\:L}}

\\ \large\sf\longmapsto Molarity=\dfrac{0.005}{\dfrac{250}{1000}L}

\\ \large\sf\longmapsto Molarity=\dfrac{0.005}{0.250}

\\ \large\sf\longmapsto Molarity=0.02M

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I think it's bromine and mercury.
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