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3 years ago

Can someone explain me the energy transfer of a jacket potato in a campfire?

Chemistry

1 answer:

Rom4ik [11]3 years ago

5 0

Answer:

Boiled, or baked, potatoes are virtually fat-free food. The main energy-providing nutrient in potatoes is carbohydrates, in the form of starch.

Explanation:

- Carbohydrates are the primary source of energy for the body and should supply at least half of your calories for the day.

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Consider the following statistic. As of January 2009, the USA has produced 60,000 metric tons of nuclear waste in 60 years of op

Korolek [52]

Answer: A

Explanation:

4 0

2 years ago

[Picture] Fuse the two elements together.

svet-max [94.6K]

K2SO4 MgSO4 Al2(SO4)3 Ge2(SO4)4

KNO3 Mg(NO3)2 Al(NO3)3 Ge(NO3)4

KCH3COO Mg(CH3COO)2 Al(CH3COO)3 Ge(CH3COO)4

Note: all of the numerical are subscript to each element or compound.

4 0

3 years ago

A 1.00 L buffer solution is 0.112 M in acetic acid and 0.112 M in sodium acetate. Acetic acid has a pKa of 4.74. What is the pH

topjm [15]

Answer:

ΔpH = 1.25

Explanation:

Using Henderson-Hasselbalch formula:

pH = pka + log [CH₃COONa] / [CH₃COOH]

pH = 4.74 + log [0.112] / [0.112]

pH = 4.74

The reaction of sodium acetate (CH₃COONa) with HCl is:

CH₃COONa + HCl → CH₃COOH + NaCl

Producing acetic acid, CH₃COOH.

If 0.1mol of HCl reacts the final moles of CH₃COONa are:

0.112mol - 0,1 mol = 0.012mol

Moles of acetic acid are:

0.112mol + 0,1 mol = 0.212mol

Using Henderson-Hasselbalch formula:

pH = pka + log [CH₃COONa] / [CH₃COOH]

pH = 4.74 + log [0.012] / [0.212]

pH = 3.49

Change in pH, ΔpH = 4.74 - 3.49 = 1.25

I hope it helps!

6 0

3 years ago

write a correct and complete nuclear equation for the alpha decay of a parent atom having 102 protons and 167 neutrons useing th

scZoUnD [109]

Alpha partical is a He nucleus. When decaying alpha particle mass is reduced by 4 and atomic number is reduced by 2.

The actual element which has 102 protons is No (Nobelium).
Since it has 167 neutrons, the mass = protons + neutrons = 102 + 167 = 269

after an alpha decay, the new element formed has 100 protons which is Fm ( Fermium)

the alpha decaying equation is,

₁₀₂²⁶⁹No → ₁₀₀²⁶⁵Fm + ₂⁴α + heat

the total mass and the atomic number( numbe rof protons) must be equal in both sides.

5 0

3 years ago

The thermodynamic quantity that expresses the extent of randomness in a system is ________. Question 14 options: entropy bond en

Bumek [7]

Answer: entropy

Explanation:

Entropy is the measure of degree of randomness or disorder of the system.

Bond energy is the energy possessed by a substance by virtue of its bonding of electrons

Enthalpy is the amount of energy absorbed or released in a chemical reaction.

Internal energy is the energy possessed by a body by virtue of rotational, vibrational and transitional modes.

Heat flow is the phenomenon of thermal equilibrium in which heat flows from hotter body to colder body to maintain equilibrium temperature.

3 0

3 years ago