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spayn [35]
3 years ago
5

Who wants to hang out?

Chemistry
1 answer:
vovangra [49]3 years ago
7 0
What’s the question?
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Which pair below describes isotopes of the same element?
Mariulka [41]
B because isotopes have the same number of protons but a different number of neutrons
3 0
3 years ago
Read 2 more answers
A solution with a pH value between 1 and 6
lozanna [386]

Answer:

One possible answer could be lemon juice

Explanation:

We had to do a water test, and I was looking up what pH levels were. Then I learned about it in school, so I know a thing or two about it :)

Possible other answers include stomach acid and cola.

Hope this helps!!

4 0
3 years ago
Why does the correct lewis structure of Co2 involve a double bond between each of the oxygen atoms and the carbon atom
kiruha [24]

Answer:

Because both carbon and oxygen are demanded to obey the octet's rule.

Explanation:

Hello.

In this case, recalling the Lewis dot structure of CO₂ which is basically:

O:=:C:=:O

We know oxygen has six valance electron whereas carbon four valence electrons, it means that oxygen needs two electrons in order to attain eight electrons and carbon needs four electrons for the same purpose. In such a way, as carbon dioxide contains one carbon atom and two oxygen atoms we infer that each oxygen is providing two electrons for a total of four to allow the carbon obey the octet as well as oxygen and this is attained via two double bonds.

Best regards.

7 0
4 years ago
A chemistry student is given 250.0 mL of clear aqueous solution at 42 C. He is told an unknown amount of a certain compound X is
lara [203]

Answer:

No

Explanation:

The solubility of a solid in water refers to the amount of that solid that dissolves in water.

It is not possible to calculate the solubility of the solid because the student threw away the first precipitate that formed. We already have the volume of water, but having lost some mass of precipitate, it has become impossible to accurately determine the solubility.

Hence the answer provided above.

7 0
3 years ago
A mechanical pencil is 14 cm long. What is its length in mm?
Tju [1.3M]

Answer:

140mm................

3 0
3 years ago
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