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Svet_ta [14]
3 years ago
15

The number of electrons (e- ) is

Chemistry
1 answer:
levacccp [35]3 years ago
6 0

Answer:

The number of electrons in a neutral atom is equal to the number of protons. The mass number of the atom (M) is equal to the sum of the number of protons and neutrons in the nucleus. The number of neutrons is equal to the difference between the mass number of the atom (M) and the atomic number (Z).

Explanation:

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nikklg [1K]

A mixture is composed of more than one substance combined
A pure substance cannot be decomposed in any reaction
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How many moles are in 213 mg of calcium fluoride, CaF2?
lana [24]

Answer:

2.73

Explanation:

2.72815277835894

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7 0
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Brainiest if correctly answered in 5m
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8 0
3 years ago
Why does blowing carbon dioxide gas into aqueous barium hydroxide reduce?
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5 0
3 years ago
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Calculate the vapor pressure at 25 ?c of hexane above the solution. the vapor pressure of pure hexane at 25 ?c is 151 torr.
Studentka2010 [4]
One of the many ways in order to solve for the vapor pressure of pure components at a given temperature is through the Antoine's equation which is written below,
                                    P = 10^(A - B/C+T)
where A, B, and C are constants and T is the temperature in °C and P is the vapor pressure in mm Hg. 
For hexane,
                             A = 7.01
                             B = 1246.33
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Substituting the known values,
                            P = 10^(7.01 - 1246.33/232.988+25)
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8 0
4 years ago
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