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Len [333]
3 years ago
15

6. We have many vestigial structures that are similar to structures on modern day chimpanzees. How can we

Chemistry
1 answer:
ollegr [7]3 years ago
5 0

Answer:

pineal body is a vastigious structure which signifies same origin of chimpanzee and modern man

Explanation:

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How many moles of SO3 are in 2.4x10^24 molesculea of SO3
yawa3891 [41]

there are 4.0 moles of SO3

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3 years ago
The body also loses heat by the evaporation of sweat. How is a tea kettle boiling similar to the evaporation of sweat from the b
egoroff_w [7]
In both cases, water is being left out of a “container” due to heat
5 0
2 years ago
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True or false. elements in the same period have the same number of valence electrons
saul85 [17]
False. elements in the same period have the same number of shells while elements in the same group have the same number of valence electrons.
4 0
3 years ago
Which of the following will affect the rate of a chemical reaction?
dimulka [17.4K]

Answer:

Solute concentration will afect the rate of a chemical reaction, because you must work with molarity

Explanation:

I think that solute mass may be it can affect the rate of reaction, if you have more mass in a solute, you will also have more moles.

If you want to know more, you have to consider temperature in the reaction and the  presence of catalysts. They all, affect reactions.

7 0
3 years ago
Read 2 more answers
What volume of 0.194 MNa3PO4 solution is necessary to completely react with 85.5 mL of 0.109 MCuCl2 ?
ira [324]

Answer:

35.9 ml

Explanation:

Start with the balanced equation:

3CuCl2(aq)+2Na3PO4(aq)→Cu3(PO4)2(s)+6NaCl(aq)

This tells us that 3 moles of CuCI2 react with 2 moles Na3PO4-

∴  1 mole CuCl2 will react with 2/3 moles Na3PO4

We know that concentration = moles/volume i.e:

c= n/v

∴n=c×v

∴nCuCl2=0.107×91.01000=9.737×10−3

I divided by 1000 to convert ml to L

∴nNa3PO4=9.737×10−3×23=6.491×10−3

v=nc=6.491×10−30.181=35.86×10−3L

∴v=35.86ml

4 0
2 years ago
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