Answer : The molarity of calcium ion on the original solution is, 0.131 M
Explanation :
The balanced chemical reaction is:

When calcium nitrate react with potassium carbonate to give calcium carbonate as a precipitate and potassium nitrate.
First we have to calculate the moles of 

Given:
Mass of
= 0.524 g
Molar mass of
= 100 g/mol

Now we have to calculate the concentration of 

Now we have to calculate the concentration of calcium ion.
As, calcium carbonate dissociate to give calcium ion and carbonate ion.

So,
Concentration of calcium ion = Concentration of
= 0.131 M
Thus, the concentration or molarity of calcium ion on the original solution is, 0.131 M
Okay thanks for reminding me
Answer:
The correct answer is that it is made of atoms that are covalently bonded together.
Explanation:
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Answer:
C.Energy is absorbed because the products have more chemical energy than the reactants.
Explanation:
Reactants- Water, Light, Carbon dioxide
Products- Oxygen and Glucose