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Chemistry

1 answer:

Alexxandr [17]2 years ago

3 0

A.) Molecules speed up.

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The molar madd of Ca(OH)2

Nonamiya [84]

What you have to do is find a periodic table and add the mass of each atom that the compound is made of.

Ca= 40.1
O= 16.0
H= 1.01

keep in mind that you have to also account for how many atoms of each there are in the molecule. for example, in Ca(OH)2, there are one Ca, two O and two H

so the molar mass of Ca(OH)2= 40.1 + (2 x 16.0) + (2 x 1.01)= 74.12 g/mol

8 0

3 years ago

Calculate the moles of calcium oxalate formed from 5 grams of potassium oxalate (molar mass 184.24 g/mol) the mole mole ratio fr

Nataly_w [17]

5 g of potassium oxalate react to produce 0.03 moles of calcium oxalate.

Calcium oxalate (CaC₂O₄) is obtained by the reaction of 5 g of potassium oxalate (K₂C₂O₄).

We can calculate the moles of CaC₂O₄ obtained considering the following relationships.

The molar mass of K₂C₂O₄ is 184.24 g/mol.
The mole ratio of K₂C₂O₄ to CaC₂O₄ is 2:1.

$5 g K_2C_2O_4 \times \frac{1molK_2C_2O_4}{184.24gK_2C_2O_4} \times \frac{1molCaC_2O_4}{2molK_2C_2O_4} = 0.03molCaC_2O_4$

5 g of potassium oxalate react to produce 0.03 moles of calcium oxalate.

Learn more: brainly.com/question/15288923

7 0

2 years ago

PLEASE HELP! It'll mean the world to me

Vikki [24]

Answer:

24 a 2.85

Explanation:

HCl is a powerful acid so it completely ioniz in water

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2 years ago

What information can be learned from bloodstains at a crime scene?

tangare [24]

you can learn who's blood it is, you can also see the blood patterns and how the crime maybe happened.

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3 years ago

Please help and answer questions 10

kirill115 [55]

The Weight is 140 and the mass is 15 can you give me brainlylist pls
I hope this helps I mean it’s easy

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2 years ago