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Korvikt [17]
3 years ago
13

Two isotopes of potassium are K-37 and K-42. Explain, in terms of subatomic particles, why K-37

Chemistry
1 answer:
skelet666 [1.2K]3 years ago
7 0
This is a short answer but because they have the same amount of protons and electrons but different amount of neutron
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alexandr1967 [171]

Answer: 40.66kJ/mol.

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nge of vaporization, ΔHvap .For water at 100∘C , the enthalpy change of vaporization is equal toΔHvap

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8 0
3 years ago
When 28242 J are transferred to water sample, its temperature increases 18⁰C to 63⁰C. Determine the mass of the water sample.
ivanzaharov [21]

Answer:

149.79

Explanation:

Formula

Joules = m * c * delta (t)

Givens

J = 28242

m = ?

c = 4.19

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Solution

28242 = m * 4.19 * 45

28242 = m * 188.55

m = 28242 / 188.55

m = 149.79

8 0
3 years ago
What are the spectator ions in Na+ + OH + H+ + Cl → H2O + Na+ + Cl?
dexar [7]

Answer:

h200

Explanation:

5 0
3 years ago
Read 2 more answers
What is the correct formula that would result from the combination of the two ionic species?
11111nata11111 [884]

Answer:

I think its B

Explanation:

I don't know how to explain it bc I'm not really sure

6 0
3 years ago
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Naddik [55]

Answer:

dependent variable: plant growth

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Explanation:

6 0
3 years ago
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