I NEED HELP AND FAST What volume of 0.100 M K2Cr2O7 (Mm = 294.18 g/mol) solution contains 73.5 g of K2Cr2O7?

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 20-cm-long, cylindrical graphite (pure carbon) rod is inserted into an oxidizing atmosphere at 1145 k and 1.013 x 105 pa pressure. the oxidizing process is limited by the diffu- sion of oxygen counterflow to the carbon monoxide that is formed on the cylindrical surface.

answer; the numbers of valence electrons in the acetic acid molecule (ch3co2h) is 24;