A certain liquid X has a normal boiling point of 127.70 ° C and a boiling point elevation constant Kb = 2.41°C*kg*mol⁻¹ A solution is prepared by dissolving some iron(III) chloride (FeCl₃) in 700 g of X. This solution boils at 129.4°C . Calculate the mass of (FeCl₃) that was dissolved.

petroleum? coal maybe?

the mass of the cathode increases because ions from the solution get reduced to atoms and become part of the cathode.

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.

a polar bond is formed when electrons are shared unevenly between atoms