Lithium aluminum hydride reduces carboxylic acids to primary alcohols via what intermediate? a) a ketone. b) a methyl ester. c) an aldehyde. d) a secondary alcohol. e) an acid chloride.

C. an aldehyde

Explanation:

- decrease the number of plants and animals living in the water.

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.