Asolution contains 1.10 mg of coso4 (155.0 grams/mole) per ml. calculate the volume of 0.009915 m zn2 needed to titrate the excess complexing reagent after the addition of 65.00-ml of 0.009065 m edta to a 30.00 ml aliquot of the co2 solution.

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.

> b takes place in the gas phase in an isothermal tubular reactor. the feed is one mole of a per one mole of c, an inert. the entering temperature and pressure are 427°c and 10 atm, respectively. the gas constant r = 0.08206 atm · l/mol · k.

nuclear fission produces elements that are heavier than helium.

the elements that are used in nuclear fission and their products are much heavier than helium.