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sineoko [7]
3 years ago
5

Why does food have potential energy?

Chemistry
2 answers:
Sonja [21]3 years ago
6 0

Answer:

that's because food molecules contain potential energy, or stored energy, that can do work in the future. When your body breaks down these molecules, energy is released that it can use to do work, like walk or think.

Explanation:

Savatey [412]3 years ago
3 0

Answer:

So that if we feel weak, energy is released through it so we can do work and do stuff like walk or think. It's like stored energy that can do things for the future.

Please give brainliest if it helped.

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TRUE

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11.
Lostsunrise [7]

Answer:

(1) -12 Kcal/mol

Explanation:

Our answer options for this question are:

(1) -12 Kcal/mol

(2) -13 Kcal/mol

(3) -15 Kcal/mol

(4) -16 Kcal/mol

With this in mind, we can start with the chemical reaction (Figure 1). In this reaction, <u>two bonds are broken</u>, a C-H and a Br-Br. Additionally, a C-Br and a H-Br are <u>formed</u>.

If we want to calculate the enthalpy value, we can use the equation:

<u>ΔH=ΔHbonds broken-ΔHbonds formed</u>

If we use the energy values reported, its possible to calculate the energy for each set of bonds:

<u>ΔHbonds broken</u>

<u />

C-H = 94.5 Kcal/mol

Br-Br = 51.5 Kcal/mol

Therefore:

105 Kcal/mol + 53.5 Kcal/mol = 146 Kcal/mol

<u>ΔHbonds formed</u>

C-Br = 70.5 Kcal/mol

H-Br = 87.5 Kcal/mol

Therefore:

70.5 Kcal/mol + 87.5 Kcal/mol = 158 Kcal/mol

<u>ΔH of reaction</u>

<u />

ΔH=ΔHbonds broken-ΔHbonds formed=(146-158) Kcal/mol = -12 Kcal/mol

I hope it helps!

<u />

6 0
3 years ago
An object with a mass of 24g and a volume 6mL has a density of?
algol [13]
A. 0.25 g/mL
Because 6/24 is 0.25
8 0
3 years ago
Read 2 more answers
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