3 years ago

Which of the following is not a part of Darwin’s theory of evolution?

Chemistry

2 answers:

OLEGan [10]3 years ago

7 0

A. Changes in organisms occur immediately.

Karo-lina-s [1.5K]3 years ago

4 0

A is the answer. Welcome

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svp [43]

Answer: ph scale

Explanation:

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2 years ago

A neutral Adam possesses an atomic number of 15 and atomic mass of 31 three electrons are gained what is the result of a convers

Y_Kistochka [10]

a negatively charged ion

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3 years ago

Is there any one who can help me in chemistry?

BaLLatris [955]

I can try.
Whats the question

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2 years ago

The _____ is the attraction of the electrons of one atom to the protons of the other atom, leading to a bond.

Pavel [41]

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i donr reagly knove

Explanation: yeah i dont know

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2 years ago

()

const2013 [10]

Answer:

$\large \boxed{\text{-1276 kJ/mol}}$

Explanation:

You calculate the energy required to break all the bonds in the reactants.

Then you subtract the energy needed to break all the bonds in the products.

CH₃CH₂OH + 3O₂ ⟶ 2CO₂ + 3H₂O

Bonds: 5C-H 1C-C 1C-O 1O-H 3O=O 4C=O 6O-H

D/kJ·mol⁻¹: 413 347 358 467 495 799 467

$\Delta H = \sum{D_{\text{reactants}}} - \sum{D_{\text{products}}}\\\sum{D_{\text{reactants}}} = 5 \times 413 + 1 \times 347 + 1 \times 358 + 1 \times 467 + 3 \times 495 = 3237 + 1485\\=\text{4722 kJ}\\\sum{D_{\text{products}}} = 4 \times 799 + 6 \times 467 =3196 + 2802 = \text{5998 kJ}\\\Delta H = 4722 - 5998= \textbf{-1276 kJ} \\ \text{The overall energy change is $\large \boxed{\textbf{-1276 kJ/mol}}$}.$

6 0

3 years ago