3 years ago

Give an example of a case where the branches of natural science appeared overlap

1 answer:

5 0

Much of biological studies are actually chemistry because of chemical changes that occur within organisms. Similarly, large parts of chemistry are governed by physics.

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A solution with pH of 9 has [OH-] concentration of

Drupady [299]

PH = -log([H+])
[H+] = 10^(-pH)

[H+] = 10^(-9)

[H+][OH-] = Kw
Kw = 1.0*10^-14 at 25 degrees celsius.

[OH-] = Kw/[H+] = (1.0*10^-14)/(1*10^-9) = 1.0*10^-5

The concentration of OH- ions is 1.0*10^-5 M.

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3 years ago

Describe the importance of the water cycle in the terms of;

nikitadnepr [17]

Answer:

ii.

Explanation:

Regulating weather patterns

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33) 1 e = ........С <br>O 1.6*10^-27 <br>O * 1.6 *10^-19 <br>O 1.66 * 10^-19 <br>o 1.66* 10^-27

Brilliant_brown [7]

Answer

0.16574

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because why not

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2 years ago

Which of the following is a characteristic of a mixture? Definite composition Each substance in the mixture retains its own prop

Butoxors [25]

A mixture can be separated a solution cannot

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Which statement is true about the gravity?

REY [17]

Answer:

Explanation:

Gravity acts on all masses equally, even though the effects on both masses.

Hope it helps you! ^^

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