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Dafna11 [192]
3 years ago
7

Name three impurities found in water​

Biology
1 answer:
Mashcka [7]3 years ago
4 0

Answer:

ya mum ya cant get rid of meh!!!

Explanation:

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9 and 10! Brainliest involved
mariarad [96]

Answer:

9 is true

10 is d

Explanation:

make me brillent plz

5 0
3 years ago
There are 258 g of MgCl2/liter. What is the molarity of the solution?
Zolol [24]

Taking into account the definition of molarity, the molarity of the solution is 2.7098 moles of MgCl₂/liter.

<h3>Definition of molarity</h3>

Molarity is a measure of the concentration of a solute in a solution and indicates the number of moles of solute that are dissolved in a given volume.

The molarity of a solution is calculated by dividing the moles of solute by the volume of the solution:

molarity= number of moles÷ volume

<h3>Molarity of the solution in this case</h3>

In this case, you know that the molar mass of MgCl₂ is 95.21 g/mole [molar mass is the amount of mass that a substance contains in one mole.]

You can apply the following rule of three: If by definition of molar mass 95.21 grams are contained in 1 mole, 258 grams are contained in how many moles?

amount of moles= (258 grams× 1 mole)÷ 95.21 grams

<u><em>amount of moles= 2.7098 moles</em></u>

Replacing in the definition of molarity:

258 g of MgCl₂/liter= <u><em>2.7098 moles of MgCl₂/liter</em></u>

<em />

Finally, the molarity of the solution is 2.7098 moles of MgCl₂/liter.

Learn more about molarity:

brainly.com/question/9324116

brainly.com/question/10608366

brainly.com/question/7429224

#SPJ1

3 0
1 year ago
how do mosses, ferns, gymnosperms, and angiosperms reproduce? general ideas with similarities and differences is what we’re look
lord [1]

Answer:

angiosperms and gymnosperms away from water, mosses and ferns with water

Explanation:

Pollen allows angiosperms and gymnosperms to reproduce away from water, unlike mosses and ferns which require water for sperm to swim to the female gametophyte.

4 0
3 years ago
Read 2 more answers
If having the correct number of copies of each chromosome is so important, how is it possible that both female (with two copies
creativ13 [48]

Answer:

because they have nothing wrong wit them

Explanation:

5 0
2 years ago
Read 2 more answers
What two gases together make up 99% of Earth's atmosphere?
Soloha48 [4]
The two gasses that make up 99% of the earth's atmosphere are nitrogen and oxygen. 
Hope that helped! =)
5 0
3 years ago
Read 2 more answers
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