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bija089 [108]
2 years ago
15

6. Alternating electricity (AC) is produced in power plants when the fuel is burned and water

Chemistry
1 answer:
Nookie1986 [14]2 years ago
6 0

Answer:

Coal-fired plants produce electricity by burning coal in a boiler to produce steam.

Explanation:

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There are two open cans of soda on the table. One can was just taken from the refrigerator and the other was taken from the cupb
nika2105 [10]
I think the correct answer from the choices listed above is option C. The can <span>from the cupboard will lose carbon dioxide more quickly because it is warmer and gases are less soluble in warmer temperatures. </span> Solubility of gases is a strong function of temperature and as well as pressure.
5 0
3 years ago
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7.6 The diagrams show the atoms in four different substances. Each circle represents an atom.
Illusion [34]

Answer:

A and C represent elements while B and D represent Compounds

Explanation:

chemical elements cannot be broken down into simpler substances by any chemical reaction. While A chemical compound is a chemical substance composed of many identical molecules composed of atoms from more than one element held together by chemical bonds

8 0
1 year ago
Morphine is a well known pain killer but is highly addictive. The lethal dose of morphine varies from person to person based on
Aliun [14]

Answer:

0.252 milimoles

Explanation:

To convert mass of a substance to moles it is necessary to use the molar mass of the substance.

The formula of morphine is C₁₇H₁₉NO₃, thus, its molar mass is:

C: 17*12.01g/mol = 204.17g/mol

H: 19*1.01g/mol = 19.19g/mol

N: 1*14g/mol = 14g/mol

O: 3*16g/mol = 48g/mol.

204.17 + 19.19 + 14 + 16 = <em>285.36g/mol</em>

Thus, moles of 71.891 mg = 0.071891g:

0.071891g × (1mol / 285.36g) = 2.5193x10⁻⁴ moles

As 1 mole = 1000 milimoles:

2.5193x10⁻⁴ moles = <em>0.252 milimoles</em>

7 0
3 years ago
Look at the image. What type of eclipse is being shown in this image?
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Pretty sure it’s a Lunar Eclipse
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Which contains more molecules; 1mol H2O2, 1mol C2H6, or 1mol CO?
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Answer:

C2H6

Explanation:

8 0
3 years ago
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