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natali 33 [55]
2 years ago
10

The diagram shows the potential energy changes for a reaction pathway.

Chemistry
1 answer:
Nitella [24]2 years ago
3 0

1) To find the change in enthalpy, determine the difference between the potential energy of the products and the potential energy of the reactants. (on this diagram, C-A) To find the activation energy, find the difference between the potential energy of the reactants and the "peak" of the curve (on this diagram, B-A). For this diagram, both the enthalpy and activation energy are positive.

2) If the reaction was exothermic, enthalpy would be negative, and the potential energy of the reactants would be greater than the potential energy of the products.

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This reaction appears to be destroying the logs
Alex_Xolod [135]
What exactly is the question you are asking?
5 0
3 years ago
Every day, about 1 4 0 , 0 0 0 , 0 0 0 140,000,000140, comma, 000, comma, 000 plastic water bottles are bought in the United Sta
jeka94

Answer:

0.875 time.

Explanation:

The length of plastic water bottles are bought in the United States every day = (the no. of plastic water bottles are bought every day)(length of each bottle) = (140.0 million bottle)(0.25 m) = 35.0 million meter.

The length of the equator of the earth = 40.0 million meter.

∴ The times can the Earth's equator be circled by a line of plastic bottles used in the United States every day = (The length of plastic water bottles are bought in the United States every day)/(The length of the equator of the earth) = (35.0 million meter)/(40.0 million meter) = 0.875 times.

8 0
3 years ago
Determine the number of valence electrons in each of the following neutral atoms.
Harlamova29_29 [7]

Answer:

Fluorine = 7 v.e.

Sulfur = 6 v.e.

Oxygen = 6 v.e.

Nitrogen = 5 v.e.

Carbon = 4 v.e.

Explanation:

Valence electrons can be easily determined by understanding groups (columns). Every element in. . .

column 3A (13) = 3 v.e.

column 4A (14) = 4 v.e.

column 5A (15) = 5 v.e.

column 6A (16) = 6 v.e.

column 7A (17) = 7 v.e.

6 0
3 years ago
A chef is going to use a mixture of two brands of italian dressing. the first brand contains 9% vinegar, and the second brand co
NikAS [45]

To answer this item, we let x be the amount of the solution that is 9% vinegar in mL and y be the amount of the solution that is 14% vinegar, also in mL. The system of linear equation that would best allow us to answer this item is,

<span>                                    x + y = 290</span>

<span>                                    0.09x + 0.14y = 0.13(290)</span>

<span>The values of x and y in the equations are 58 and 232. Thus, the amounts of the 9% vinegar solution and 14% vinegar solution are 58 and 232 mL, respectively. </span>

4 0
3 years ago
A piece of tin foil has a volume of 0.5345 mm3. If the piece measures 10.0 mm long and 1.25 cm wide, what is the thickness of th
morpeh [17]

Answer:

Thickness of foil = 0.004mm

Explanation:

V= length x width x height (height can also be known as the thickness 't')

0.5345=10.0 x (1.25÷10) x t

t=0.5345/10.0 x 12.5

t=0.004276mm

t=0.004mm

3 0
2 years ago
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