How many moles of carbon are in 5.2 moles of c7h18?

Answer : The number of moles of carbon are, 36.4 moles.

Explanation : Given,

Moles of = 5.2 mole

First we have to determine number of carbon and hydrogen atoms present in .

As we know that, in there are 7 atoms of carbon and 18 atoms of hydrogen.

Now we have to determine the moles of carbon.

As, 1 mole of contains 7 moles of carbon.

So, 5.2 moles of contains moles of carbon.

Hence, the number of moles of carbon are, 36.4 moles.

answer: enthalpy

explanation:

for a exothermic reaction, the energy is released i.e. the energy of the products is lower than the energy of the reactants.

= enthaply

= energy of products

= energy of reactants

as , thus comes out to be negative. negative value of enthalpy shows that the reaction is exothermic.

catya that's not even a b or c