Silicon reacts with carbon dioxide to form silicon carbide sic and silicon dioxide
1 answer:
The question is incomplete, here is the complete question:
Silicon reacts with carbon dioxide to form silicon carbide and silicon dioxide. Write the balanced chemical equation.
<u>Answer:</u> The balanced chemical equation is written below.
<u>Explanation:</u>
Every balanced chemical equation follows law of conservation of mass.
A balanced chemical equation is defined as the equation in which total number of individual atoms on the reactant side is equal to the total number of individual atoms on product side.
The balanced chemical equation for the reaction of silicon and carbon dioxide follows:
By Stoichiometry of the reaction:
2 moles of silicon reacts with 1 mole of carbon dioxide gas to produce 1 mole of silicon carbide and 1 mole of silicon dioxide
Hence, the balanced chemical equation is written above.
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Answer : The original concentration of copper (II) sulfate in the sample is,
Explanation :
Molar mass of Cu = 63.5 g/mol
First we have to calculate the number of moles of Cu.
Number of moles of Cu =
Now we have to calculate the number of moles of
Number of moles of Cu = Number of moles of
Number of moles of =
Now we have to calculate the molarity of
Now put all the given values in this formula, we get:
To change mol/L into g/L, we need to multiply it with molar mass of
Molar mass of = 159.609 g/mL
Concentration in g/L =
Thus, the original concentration of copper (II) sulfate in the sample is,