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Ronch [10]
4 years ago
8

HELP ME ROCK CYCLE!!!

Chemistry
1 answer:
Salsk061 [2.6K]4 years ago
8 0
I’m petty sure it’s D
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What is the oh- in a solution with a poh of 5.71
Rudik [331]

Answer:- The hydroxide ion concentration of the solution is 1.95*10^-^6 .

Solution:- The formula used to calculate pOH from hydroxide ion is:

pOH=-log[OH^-]

When pOH is given and we are asked to calculate hydroxide ion concentration then we multiply both sides by negative sign and take antilog and what we get on doing this is:

[OH^-]=10^-^p^O^H

pOH is given as 5.71 and we are asked to calculate hydrogen ion concentration. Let's plug in the given value in the formula:

[OH^-]=10^-^5^.^7^1

[OH^-] = 0.00000195 or 1.95*10^-^6

So, the hydroxide ion concentration of the solution is 1.95*10^-^6 .



3 0
3 years ago
Research the ecology of your region and find one species that is endangered. Find an estimate of the population of the species i
Elza [17]

The endangered species in my region with their estimate population are:

  • Northwestern African Cheetah -  250
  • West African Lion -  400

<h3>What threat faces Northwestern African Cheetah?</h3>

This cheetah is said to be an endangered species because of their loss of their habitat and  also due to fragmentation, trade and little human-activities.

West African Lion is said to be an endangered species because the lion's historic range in West Africa was said to be lowered by a lot of amount or scale as a result of land use changes and human activities such as falling of trees, buildings, etc.

Hence the endangered species in my region with their estimate population are:

  • Northwestern African Cheetah -  250
  • West African Lion -  400

Learn more about endangered species from

brainly.com/question/19655487

#SPJ1.

8 0
2 years ago
What are ionic compounds typically composed of?
Mashcka [7]

<span> </span><span>Ionic compounds are compound that contains ions held together by ionic bonds. They are made up of particles that are arranged in a repeating pattern. Ions are said to be packed in a regular crystalline structures in an arrangement with the least energy.</span>

4 0
3 years ago
Read 2 more answers
The ratio of the mass of u-238 to the mass of pb-206 can be used to.
netineya [11]
Radiometric dating

hope this helps
4 0
2 years ago
Question 8 of 30
hammer [34]
The answer is c I’m sure
7 0
4 years ago
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