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TEA [102]
3 years ago
10

Which radioisotope is used in dating geological

Chemistry
2 answers:
quester [9]3 years ago
7 0

Answer:

U- 238

Explanation:

Uranium-238 is used to date many geological samples, especially on materials that are thousands to over a million years old

PolarNik [594]3 years ago
3 0
(2) U-238 is the radioisotope used in dating geological formations. Uranium-238 has a half-life of 4.46 billion years, which makes it suitable to date such old formations.
The other options do not have such long durabilities and half-lives.
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Emerald Robinson described what chemistry is. What is it not? Select one: O a. The study of matter, properties of matter, and ho
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2 years ago
In the chemical reaction: NaOH (s) + H2O Na+ (aq) + OH- (aq), which substance (or substances) is in solution? A. Na+ (aq) only B
bonufazy [111]

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in a chemical reaction of NaOH with H2O, after NaOH is completely disassociated, we will find Na+ and OH- ions in the solution. (option C).

Explanation:

In a reaction where NaOH is added to H2O.

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There will not remain any NaOH in the solution. This means option D is not correct.

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These ions we will find in the solution.

Not only Na+ because NaOH is a strong base, so there will be a lot of OH- ions as well in solution.

This means in a chemical reaction of NaOH with H2O, after NaOH is completely disassociated, we will find Na+ and OH- ions in the solution.

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Which of the following are balanced equations? Check all that apply.
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