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kolezko [41]
2 years ago
12

How many moles are there in 1.20 x 1025 particles of helium?

Chemistry
1 answer:
Anettt [7]2 years ago
3 0

Answer:

You would get 19.969 moles.

Explanation:

You would get 19.969 moles.

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Plsss help i need help y’all pls help me asap i don’t wanna get a bad grdeee
evablogger [386]

Answer:

The food coloring mixes through the hot water faster than it mixes with the cold water. This is because in hot water, thewater molecules have more energy and are moving faster than the molecules of cold water. This makes it easier for the dye to get mixed throughout the hot water.

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3 years ago
Pls help ill mark as brainliest
asambeis [7]

Answer:

Decomposition

Explanation:

First, you have one compound, then they break up, or decompose, into two compounds.

3 0
3 years ago
Which of these have the same number of particles as 1 mole of water H2O
Fed [463]

Answer:

It is equal to Avogadro's number (NA), namely 6.022 x1023. If we have one mole of water, then we know that it will have a mass of 2 grams (for 2 moles of H atoms) + 16 grams (for one mole O atom) = 18 grams.

Explanation:

The question is not very much clear.

If you are asking for molecules then 1 mole water= 6.023 * 10^23

If you are asking for atoms then 1 mole water= 6.023 * 10^23 * 3

If you are asking for particles then,

So, in your example you would have one mole of water molecules. If you dissociated those water molecules, than you would end up with 2 moles of hydrogen atoms, and one mole of oxygen atoms.

I hope that was helpful!

H=1 proton,1 electron

O=8 protons,8 neutrons and 8 electrons

total particles in one H2O molecule-28

total no. of particles in 1 mole of water- 6.023 * 10^23 * 28

8 0
3 years ago
How do muscles work in pairs to make parts of the body move?
schepotkina [342]

Answer:

Muscles work in pairs to move a bone.

Skeletal muscles only PULL in one direction. For this reason they always come in pairs. When one muscle in a pair contracts, to bend a joint for example, its counterpart then contracts and pulls in the opposite direction to straighten the joint out again.

4 0
3 years ago
Read 2 more answers
How does things go sublime
Lemur [1.5K]
Things go sublime when changing automatically into vapor when it is heated, usually forming a solid figure.
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3 years ago
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