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Phoenix [80]
2 years ago
5

7. Calculate the net charge of the following atoms.

Chemistry
2 answers:
mylen [45]2 years ago
7 0

Answer:

Atom A: +2 Atom B: 0 Atom C: -4 Atom D: +4

Explanation:

We know that protons have a positive charge and electrons have a negative charge. Therefore, we will treat the electrons as a negative number. The net charge is the sum of electrons and protons.

Atom A = 6 + (-4)

because electrons as negative.

Net charge = +2

Atom B = 9 + (-9)

Net charge = 0, or neutral

Atom C = 10 + (-14)

Net charge = -4

Atom D = 33 + (-29)

Net charge = +4

loris [4]2 years ago
6 0

Answer:

any atom that contains six protons is the element carbon and has the atomic number 6, regardless of how many neutrons or electrons it may have.

Explanation:

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If ∆G◦ = 27.1 kJ at 25◦C for the reaction CH3COOH (aq) + H2O (l) → CH3COO− (aq) + H3O+ (aq), calculate Ka for this reaction at 2
frosja888 [35]

Answer:

Ka = 1.78 × 10⁻⁵

Explanation:

Let's consider the following thermochemical equation.

CH₃COOH(aq) + H₂O(l) → CH₃COO⁻(aq) + H₃O⁺(aq)   ∆G° = 27.1 kJ/mol

At 25°C (298 K), we can find the equilibrium constant (Ka) using the following expression.

∆G° = - R × T × lnKa

where,

R: ideal gas constant

T: absolute temperature

27.1 × 10³ J/mol = - (8.314 J/K.mol) × 298 K × lnKa

Ka = 1.78 × 10⁻⁵

5 0
2 years ago
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VMariaS [17]

Answer:

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Explanation:

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3 years ago
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Answer:

A

Explanation:

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