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Lostsunrise [7]
3 years ago
12

Which statement best defines potential enregy?

Chemistry
1 answer:
Nina [5.8K]3 years ago
7 0

Answer:

A. Potential energy is stored energy

Explanation:

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To identify a diatomic gas (X2), a researcher carried out the following experiment: She weighed an empty 4.6-L bulb, then filled
snow_tiger [21]

Answer:

The chemical formula of the gas is N_2.

Explanation:

The difference between the container with gas and empty container is equal to the mass of the gas.

Let the gas be X_2

Mass of the gas = m

Molar mass of diatomic gas = M

Pressure of the gas = P = 1.80 atm

Volume of the gas = V = 4.6 L

Temperature of the gas= T = 27.0 C = 27.0 + 273 K = 300 K

Moles of diatomic gas = n = \frac{m}{M}

Using ideal gas equation:

PV=nRT

PV=\frac{m}{M}RT

M=\frac{mRT}{PV}=\frac{9.5 grams \times 0.0821 atm L/mol K\times 300 K}{1.80 atm\times 4.6 L}=28.26 g/mol\approx 28 g/mol

Atomic mass of the element X = \frac{28 g/mol}{2}=14 g/mol

The element is nitrogen and the diatomic gas is N_2.

5 0
3 years ago
6. Which body systems do sense receptors belong to?
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<h2>receptors belong to the autonomic nervous system !</h2><h2>                   BRAINLIEST PLEASE !</h2>
3 0
3 years ago
a 10.00 gram sample of a soluble barium salt is treated with an excess of sodium sulfate to precipitate 11.21 grams BaSO4, (M= 2
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4 years ago
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4 years ago
The organic compounds that are the starting materials for compounds like fats and amino acids are called
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The answer is; acetyl-CoA

This organic compound is an intermediate of the TCA/Citric/Krebs cycle. To make fats, the coenzyme is carboxylated to manolyCoA. This becomes a precursor fo palmitate and other lipids in the body by the addition of more manolyCoA.

The coenzyme is also a precursor to the formation of alpha-ketoglutarate, another intermediate of the TCA cycle, which is also a precursor in the formation of proteins.


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3 years ago
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