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makkiz [27]
3 years ago
5

When does a lunar eclipse occur?​

Chemistry
2 answers:
Bezzdna [24]3 years ago
7 0

Answer:

A lunar eclipse occur when the Moon moves into the earths shadow.

cluponka [151]3 years ago
5 0

Answer:

A partial lunar eclipse occurs when the Earth moves between the Sun and Moon but the three celestial bodies do not form a straight line in space. When that happens, a small part of the Moon's surface is covered by the darkest, central part of the Earth's shadow, called the umbra.

Explanation:

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How many moles of atoms are in 376.2 g S?
Marizza181 [45]
There are 69 moles in 376.2 g s
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4 years ago
What volume of 7.25 mol/L stock solution in needed to make 3.84 L of 8.50 mol/L solution?
Serjik [45]

Answer:

4.50 L

Explanation:

First we <u>calculate how many moles are there in 3.84 L of a 8.50 mol/L solution</u>:

  • 3.84 L * 8.50 mol/L = 32.64 mol

Now, keeping in mind that

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we can calculate the volume of a 7.25 mol/L solution that would contain 32.64 moles:

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So we could take 4.50 L of the 7.25 mol/L solution and evaporate the solvent until only 3.84 L remain.

7 0
3 years ago
A sample of a substance that has a density of 0.844 g/mL has a mass of 0.549 g. Calculate the volume of the sample.
Virty [35]
D = m / V

0.844 = 0.549 / V

V = 0.549 / 0.844

V = 0.650 mL


7 0
4 years ago
Non examples of chemical change<br> List some please
Ivan

Answer:

Crushing a can.

Melting an ice cube.

Boiling water.

Mixing sand and water.

Breaking a glass.

Dissolving sugar and water.

Shredding paper.

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3 0
3 years ago
What is the specific heat of a substance that absorbs 228 joules of heat when a sample of 706 g of the substance increases in te
lesantik [10]

Answer:

specific heat is 5.2 j/kg degree celsius

5 0
3 years ago
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