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inessss [21]
3 years ago
10

Which statement best describes comparative and descriptive investigations?

Chemistry
2 answers:
sleet_krkn [62]3 years ago
8 0

Answer:

its the first one

Explanation:

scZoUnD [109]3 years ago
3 0

Answer:

They both include a question,procedure and conclusion.

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Explain why ionic compound do not form molecules.
Darina [25.2K]

Answer:

Because a molecule, by definition, has a valence of zero

(neutral charge, stable). Also by definition, an ion has a positive

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Explanation:

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What can be absorbed or produced as the result of a chemical reaction???
tia_tia [17]
Heat can be absorbed or produced
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If a 125 gms of radioactive element has a half life of 60 min how many half lives will it go through to become 3.90625 gms
Sonja [21]

Answer:

  • 5

Explanation:

Let the number of half lives be x

<u>Solve this equation to find the value of x:</u>

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  • log (0.5)ˣ  = log 0.03125
  • x =  log 0.03125 / log 0.5
  • x = 5

4 0
3 years ago
I can be found in the 4th period on the periodic table.
Rainbow [258]

Vanadium (V)

Vanadium is the only one in the 4th period here so

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What season does the sourtther hempishere experience when it is away from the sun?
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