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tiny-mole [99]
2 years ago
12

What is the density of a substance that has a mass of 20 g and a volume of 10 mL?

Chemistry
1 answer:
Paha777 [63]2 years ago
3 0

Answer:

That unknown substance is water

Explanation:

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A(n) __________ is all the living and nonliving things in a particular area that interact with one another.
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ecosystem

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In fractional distillation, liquid can be seen running from the bottom of the distillation column back into the distilling flask
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substances with a higher boiling point are returning back to the flask which allows another substances with the specific context temperature (lower boiling point) to boil over and be purified.

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The reason it happens because the lower boiling point substance vaporizes and crosses over while the other substance is waiting for its boiling point to reach

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An alpha particle is equivalent to a _____ nucleus.
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The density of aluminum is 2.70 g/mL. If you use 108 g of aluminum foil, what is its volume in mL?
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volume =40.0 ml

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3 0
3 years ago
34. Explain how dimensional analysis is used to solve<br> problems.
alisha [4.7K]

Answer: By understanding conversion factors and how they are related to each other

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Dimensional Analysis is a step by step approach to solving problems in Physics, Chemistry , and Mathematics. It involves having a clear knowledge and understanding to be able to convert a given unit to another in the same dimension using  conversion factors and knowing how they are related to each other.

For instance, In Chemistry, we want to Convert 120mL to L.(note that ml stands for millilitres and ;L stands for litres)

Or first approach will be to write out the conversion factor related to our problem which is

1000ml =1L

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giving us  120ml x 1L/1000ml =0.12L

This same process is applied to convert any type of dimensional analysis problems be it physics or mathematics.

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