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2 years ago

Choose the formula for hydroxide. OH HPO4 Ca(OH)2 d Ba(OH)2

Chemistry

2 answers:

yKpoI14uk [10]2 years ago

5 0

OH that’s the answer OH

dimulka [17.4K]2 years ago

4 0

Answer:

Explanation:

Hydroxide is a diatomic anion with chemical formula OH⁻.

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A heterogeneous material may be

IgorLugansk [536]

Answer:

4) a mixture.....................

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Calculate the ph of sweater which has a hydrogen ion concentration of 1 times 10 to the power of 8

telo118 [61]

Answer:

The pH of the sweater containing Hydrogen ion concentration

$[H^{+}]=1\times 10^{-8}$ is

8

Explanation:

pH = It is the negative logarithm of activity (concentration) of hydrogen ions.

pH = -log([H+])

Now, In the question the concentration of [H+] ions is :

$[H^{+}]=1\times 10^{-8}$

$pH = -log(1\times 10^{-8})$

use the relation:

$log(10^{-a})=a$

$pH= -(-8)$

pH = 8

Note : 1 times 10 to the power of 8 must be" 1 times 10 to the power of -8"

If the concentration is

$[H^{+}]=1\times 10^{8}$

Then pH = -8 , which is not possible . So in that case the pH calculation is by other method

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2 years ago

Power gathered from the sun and wind

Mademuasel [1]

Answer: B. Can provide humans with energy forever

Explanation: The warm air rises and cooler air rushes in to take its place. The moving air is wind. As long as the sun shines, there will be winds on the Earth. We will never run out of wind energy.

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2 years ago

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What’s the two products of H2Co3

forsale [732]

Answer:

Hydrogen and Cobalt

Explanation:

Break up each individual element

- Hope that helps! Please let me know if you need further explanation.

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3 years ago

What does an emission spectrum look like?

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Answer:

It should be B

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