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ohaa [14]
3 years ago
11

What are examples of deposition

Chemistry
1 answer:
Elena L [17]3 years ago
3 0

Answer:

withering?

Explanation:

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What is the wavelength of radio waves that have a frequency of 3.20 x 1010 Hz?
Afina-wow [57]

The correct answer is A; or 9.38x10^-3.

Explanation:

f=3.20x10^10       c= 3.00x10^8

Once you divide those by each other, your answer is 9.83x10^-3

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Which of the following statements is not correct?
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To answer the question above, multiply the given number of moles by the molar masses.

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3 0
3 years ago
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2. Classify the following solutions as acidic, basic, or neutral at 25OC.
PilotLPTM [1.2K]

Answer: a) pH = 13.00 : basic

b) [H_3O^+]=1.0\times 10^{-12}: basic

c) pOH = 5.00 : basic

d) [OH^-]=1.0\times 10^{-9}: acidic

Explanation:

pH or pOH is the measure of acidity or alkalinity of a solution.

pH is calculated by taking negative logarithm of hydrogen ion concentration.

pH=-\log [H_3O^+]

Acids have pH ranging from 1 to 6.9 and bases have pH ranging from 7.1 to 14.Neutral substances have pH of 7.

a) pH = 13.00

As pH is more than 7, the solution is basic.

b)  [H_3O^+]=1.0\times 10^{-12}

Putting in the values:

pH=-\log[1.0\times 10^{-12}]

pH=12

As pH is more than 7, the solution is basic.

c) pOH = 5.00

pH+pOH=14.0

pH=14.0-5.00=9.00

As pH is more than 7, the solution is basic.

d) [OH^-]=1.0\times 10^{-9}

Putting in the values:

pOH=-\log[1.0\times 10^{-9}]

pOH=9.00

pH+pOH=14.0

pH=14.0-9.00=5.00

As pH is less than 7, the solution is acidic.

3 0
3 years ago
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Yes, you could begin to swear because you are used to hearing those words so in your mind it will get implanted and it will be just a natural response.

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