Answer:
C₅H₁₁Cl
Explanation:
Count all the carbon, hydrogen, and chlorine atoms. The number of atoms of each element is the subscript for each element in the formula. No subscript is understood to be one. Carbon goes first, hydrogen goes second, and chlorine goes last when writing the formula.
Answer: 4 moles of Na are needed to produce 4 moles of NaCl
Explanation:
The balanced chemical equation is :
According to stoichiometry :
2 moles of
are formed from = 2 moles of 
Thus 4 moles of
will be formed from =
of 
Thus 4 moles of Na are needed to produce 4 moles of NaCl