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s2008m [1.1K]
3 years ago
15

PLEASE HELP it would be really nice of you to answer this question i would be very grateful <3

Chemistry
2 answers:
Aleksandr-060686 [28]3 years ago
7 0

Answer: D (The abundance percentage of each isotope)

Explanation: hope this helps!

Leviafan [203]3 years ago
3 0
The answer is pretty much d
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20 Points!!<br><br> Need it as soon as possible.
Solnce55 [7]

Answer:

D.

Explanation:

The reaction is losing potential energy, which means that the reaction is losing that energy as heat. Exothermic is the loss of energy. Therefore it will be D.

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3 years ago
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Which is the correct Lewis structure of C2H4
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Lewis structure for C2H4

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3 years ago
What is the Golden Rule of Solubility? A. polar dissolves nonpolar. B. nonpolar dissolves polar. C. like dissolves unlike D. lik
DerKrebs [107]

Answer: D. like dissolves like

Explanation:

The solubility of substances is governed by: Like dissolves like, which states that polar compounds are soluble in polar solvents and non polar compounds are soluble in non polar solvents.

Hydrocarbons are non polar in nature due to less difference between the electronegativities of carbon and hydrogen and thus are soluble in non polar solvents only.

Ionic compounds which are formed by elements with high electronegativity difference are polar in nature and thus dissolve in polar solvents.

Example: NaCl in water.

4 0
3 years ago
If carbon-15 has a half-life of 2.5 seconds, % of the sample would still be
kramer

Answer:

After 5 second 25% C-15 will remain.

Explanation:

Given data:

Half life of C-15 = 2.5 sec

Original amount = 100%

Sample remain after 5 sec = ?

Solution:

Number of half lives = T elapsed / half life

Number of half lives = 5 sec / 2.5 sec

Number of half lives = 2

At time zero = 100%

At first half life = 100%/2 = 50%

At second half life = 50%/2 = 25%

Thus after 5 second 25% C-15 will remain.

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3 years ago
Z u need help with this assignment​
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Answer:

Explanation:

Get a better image plz

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