Number 14? Please :)

Chemistry

1 answer:

LUCKY_DIMON [66]3 years ago

5 0

i believe the answer is because asphalt conducts heat better

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Guys, please, please help!!

shutvik [7]

Ookay

1) T
2) T
3) F

Hope i helped :)

6 0

3 years ago

Read 2 more answers

How many atoms are found in the chemical formula below?

Trava [24]

the answer is 15.

4+4+4+1 =13 then u add the 2 outside the bracket which will give u 15

4 0

3 years ago

What subatomic particles surround the nucleus? Question 1 options: protons neutrons atoms electrons

agasfer [191]

Answer:

Electrons "surround"

Explanation:

Protons and neutrons "make up" the nucleus so they are contained "within" the nucleus meaning that electrons would "surround" the nucleus as they orbit around the nucleus

6 0

3 years ago

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Explain how the information given below could be used to determine the concentration of an unknown sample.

Vika [28.1K]

Answer:

See below

Explanation:Plot the known concentrations and adsorbance data. Draw a best fit line through thwe points. When the absorbance of a solution of unknown concentration (but same substance) is determined, find the concentration from the line at that absorption value. See attached graph.

E.g., an sample of the same substance had an absorbance of 0.35. Find that on the x scale and then determine the concentration that would be required to produce that level of absorbance. 0.483M in this case.