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MrMuchimi
3 years ago
6

Who was the scientist responsible for the theory of evolution by natural selection?

Chemistry
2 answers:
Allushta [10]3 years ago
8 0

Answer:

Charles Darwin

Explanation:

Charles Darwin is more famous than his contemporary Alfred Russel Wallace who also developed the theory of evolution by natural selection. scientist who studies living organisms.J

Nastasia [14]3 years ago
6 0

Answer:

Charles Darwin

Explanation:

He was the one who created the theory of evolution by natural selection along with the co-discoverer Alfred Wallace in 1858.

I just did this topic like a few weeks ago.

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What is the total number of atoms in 80 grams of neon?
Wewaii [24]
You take 80 g of Neon times 1 mol over the molar mass, 20.18 g/mol and multiply by Avogadro's number.
4 0
3 years ago
The energy powering the movements of molecules is referred to as the ______ of the system.
bagirrra123 [75]
The answer to the question asked  above is heat energy<span> .


</span><span>The energy powering the movements of molecules is referred to as the heat energy of the system.</span>

Hope my answer would be a great help for you.    If you have more questions feel free to ask here at Brainly.
6 0
3 years ago
Help me please i need it for homework i cant seen to solve the answer :((
strojnjashka [21]
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7 0
3 years ago
Which of the following does not correctly describe Sn2 reactions of alkyl halides? A) The mechanism consists of a single step wi
Rashid [163]

Answer:

The correct answer is B the tertiary halides reacts faster than primary halides.

Explanation:

During SN2 reaction the nucleophile attack the alkyl halide from the opposite side resulting in the formation of transition state in which a bond is not completely broken or a new bond is not completely formed.

   After a certain period of time the nucleophile attach with the substrate by substituting the existing nuclophile.

  An increase in the bulkiness in the alkyl halide the SN2 reaction rate of that alkyl halide decreases.This phenomenon is called steric hindrance.

  So from that point of view the that statement tertiary halides reacts faster that secondary halide is not correct.

7 0
3 years ago
How many moles of carbon dioxide gas should be produced when 10.0 g of C2H6 are combusted at STP?
Finger [1]

Answer:

                    0.665 moles of CO₂

Explanation:

                     The balance chemical equation for the combustion of Ethane is as follow:

                            2 C₂H₆ + 7 O₂ → 4 CO₂ + 6 H₂O

Step 1: <u>Calculate moles of C₂H₆ as;</u>

                              Moles  =  Mass  /  M.Mass

Putting values,

                              Moles  =  10.0 g / 30.07 g/mol

                              Moles  =  0.3325 moles

Step 2: <u>Calculate Moles of CO₂ as;</u>

According to balance chemical equation,

                    2 moles of C₂H₆ produced  =  4 moles of CO₂

So,

             0.3325 moles of C₂H₆ will produce  =  X moles of CO₂

Solving for X,

                      X  =  0.3325 mol × 4 mol ÷ 2 mol

                      X = 0.665 moles of CO₂

3 0
3 years ago
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