Read the given chemical reaction. C2H6 + O2 CO2 + H2O
How many moles of CO2 are produced during the complete combustion of 3.6 moles of C2H6?
O 1.8 moles
O 4.4 molele
O 7.2 moles
O 9.2 moles

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Explanation:

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7.2

Explanation:

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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.

the density(ratio between mass and volume as m/v) decreases from top to bottom in periodic table group as the size increases and nuclear charge decreases. but in periods density increases from left to right as atom size decreases and nuclear charge increases.