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Lady_Fox [76]
3 years ago
6

Which two energy sources were used the most in

Chemistry
1 answer:
Naily [24]3 years ago
4 0

Answer:

The 1st and 2nd ones on the top

Explanation:

Hope this helps:)

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Describe how naturally<br> acidic rainwater can affect a<br> mountain of limestone.
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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
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What is the mass number of an atom or ion with three protons, three neutrons, and three electrons?.
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Answer:

the mass number of the atom or ion is 6

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The following equation is balanced according to the Law of Conservation of Mass:
igor_vitrenko [27]
The answer would be:
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