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Roman55 [17]
4 years ago
5

What is convection current

Chemistry
1 answer:
PolarNik [594]4 years ago
8 0
The transfer of heat by the mass movement of heated particles into an area of cooler fluid
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Are there moles of stars in the universe?
Natalka [10]

Answer:

Yes, a mole is defined as 6x1023 of something, so a mole of stars is 6x1023 stars. If we compare this number to our estimate of the total number of stars, we find that there is about 1/10 of a mole of stars in the Universe.

Hope this helps!

7 0
3 years ago
What is the molar mass of CHCl3?<br> 48.47 g/mol<br> 83.92 g/mol<br> 119.37 g/mol<br> 121.39 g/mol
kolbaska11 [484]

119.37 g/mol

<h3>Further explanation</h3>

Relative atomic mass (Ar) and relative molecular mass / molar mass (M)  

the molar mass/molecular mass of a compound : the sum of the relative atomic mass (Ar) of the constituent atoms

M AxBy = (x.Ar A + y. Ar B)  

Atomic weight (Ar) of :

  • C : 12.0107 g/mol  
  • H : 1.00784 g/mol  
  • Cl : 35.453 g/mol  

The molar mass of CHCl₃

\tt CHCl_3=12.0107+1,00784+(35,453\times 3)=119.37~g/mol

8 0
3 years ago
Read 2 more answers
Which actions would increase the rate at salt dissolves in water
agasfer [191]
I’m pretty sure the answer is stir the water
5 0
3 years ago
Read 2 more answers
Predict the molecular geometry about N in the molecule CH3NHCH3
andre [41]
The correct answer is D
7 0
3 years ago
Why can't 1−methylcyclohexanol be prepared from a carbonyl compound by reduction? select the single best answer?
forsale [732]
1−methylcyclohexanol is a tertiary alcohol. Tertiary Alcohols are synthesized by either reacting Ketone with Organometallic compounds like Grignard reagent or by hydration of substituted alkenes. <span>1−methylcyclohexanol can not be synthesized by reduction of carbonyl compound because it is not possible to have a starting carbonyl compound having carbonyl group along with three other alkyl groups (as carbon can only form 4 bonds).

Result:
           Tertiary alcohols don't contain a hydrogen atom at carbon attached to hydroxyl group that is why it is not possible to synthesize </span><span>1−methylcyclohexanol by reduction of carbonyl compound.</span>

4 0
3 years ago
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