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muminat
4 years ago
9

Which Formula represents an asymmetrical molecule?

Chemistry
1 answer:
9966 [12]4 years ago
8 0
The answer is NH3 I hope this helps y’all out....
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assume you have a 500 g sample of a radioactive isotope with a half-life of 100 years. fill in the table showing how many grams
sweet-ann [11.9K]

Answer:

8.10 hours.

Explanation:

You start with 500.0g.

After the first half-life, you have 250.0g.

After the second, you have 125.0g.

After the third, you have 62.50g.

Therefore, it takes three half-lives to decay to 62.50g.

Therefore, the elapsed time must be triple the length of one half-life.

24.3

3

=

8.10

, so it is 8.10 hours.

Explanation:

3 0
3 years ago
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Keri has to identify a mysterious brown liquid in science class. She pours it through a filter, but the substance looks the same
Allisa [31]

The answer is NO. It can not be a compound it is an element.

In a component mixture it can be separated physically way from the other.

In element it can be only separated by a way of destroying the compound itself by chemical reaction.

4 0
3 years ago
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Describe what a geologist would observe if she poured acid on the sculpture
natita [175]

Answer:

A geologist would observe how the material that the sculpture is made out of reacts to the acid.

6 0
3 years ago
Which is an example of a building block that helps form DNA?
lozanna [386]
Cytosine is a building block of DNA,

(brainliest would be appreciated)
4 0
4 years ago
Many hospitals use radioisotopes for diagnosis and treatment or in palliative care. Three radioisotopes used in medicine are giv
snow_lady [41]

Answer:

iodine-131: 131I

cobalt-60: 60Co

samarium-153: 153Sm

Explanation:

8 0
3 years ago
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