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a_sh-v [17]
2 years ago
9

Who know the song genius?​

Chemistry
1 answer:
Angelina_Jolie [31]2 years ago
3 0

Answer:

Me

Explanation:

The one with sia??

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1. How many moles of nitrogen gas are in 1.54x10^26 molecules? How many atoms?
kow [346]

Answer:

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1. How many moles of nitrogen gas are in 1.54x10^26 molecules? How many atoms?

2. How many molecules of water are in 3.45 moles of water?

3. How many atoms of C are in 2.00 moles of Cv6Hv12Ov6? (v means the number is below)

Explanation:

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2 years ago
How many major reservoirs does carbon move between?<br> A. 3<br> B. 4<br> C. 5<br> D. 2
Irina-Kira [14]
<span>Carbon can also bond with other four atoms because of its outer shell (valence shell) that has four electrons. This is the reason why organic molecules can be so large because of this bonding. Suppose you have a compound of CCl4. You know that chlorine can only share 1 electron because 7 of its electrons are filled. Also, in carbon, it can only share 4 electrons because 4 of it are already filled. That is why carbon needs four chlorine to form CCl4. The answer is letter <u>B.</u></span>
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3 years ago
Astronomers send probes to other planets to take pictures of their surfaces. An astronomer thinks that briny water flows on Mars
aalyn [17]

Answer: the answer is B

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3 0
3 years ago
Imagine two solutions with the same concentration and the same boiling point, but one has ethanol as the solvent and the other h
Anna71 [15]

Imagine two solutions with the same concentration and the same boiling point.?

Imagine two solutions with the same concentration and the same boiling point, but one has ethanol as the solvent and the other has carbon tetrachloride as the solvent. Determine that concentration and boiling point.

ethanol: 78.4 °C Kb=1.22 c/m

carbon tetrachloride: 76.8 °C Kb=5.03 c/m

Answer:

The molal concentrations are 0.42 m.

Explanation:

This question seeks to explain the boiling point elevation as a colligative property of a mixture.

Colligative property of a mixture/solution is one that describes any property of that that depends only on the number of molecules present.

∆T=Kb.m

∆T - Change in boiling point

Kb- boiling point constant

m - molality

The change in boiling points are 1.6 degrees apart; i.e.,∆T= 78.4-76.8 = 1.6 so the CCl4 must increase 1.6 more than the ethanol.

Remember that

If you want the boiling point to be the same, that means you want

T (ethanol) = T (CCl4)

T (CCl4) =5.03*m

∆T = [1.22*m + 1.6]

[1.22*m + 1.6] = 5.03*m

If concentration is the same;

and solve for m

m = 0.42.

We can check that out from

∆T = Kb*m

∆T(ethanol)= 1.22*0.42 = 0.51

so boiling point. = 78.4 + 0.51 = 78.9

∆T(CCl4) = 5.03*0.42 = 2.1

so boiling point. = 76.8 + 2.1 = 78.9

and the boiling point are the same.

The molal concentrations are 0.42 m.

3 0
2 years ago
How do i calculate the total number of protons in an ionic compound?
soldier1979 [14.2K]

You add the protons of each atom together. The fact that it is an ionic compound shouldn't bother you at all.

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