Which of the following is true for all exergonic reactions? a. the reaction goes only in a forward direction: all reactants will be converted to products, but no products will be converted to reactants. b. the reaction proceeds with a net release of free energy. c. a net input of energy from the surroundings is required for the reactions to proceed. d. the products have more total energy than the reactants. e. the reactions are rapid.

scientific laws are the result of testing theories and proving them to be facts.

d) physical means can be used to separate the components of air.

the answer would most likely be c, because if it's a comical piece of information, it may likely not be true, if it's a site that allows anybody to edit the content, it could mean a five year old is typing the info, and if it's a tv show produced by a celeb, it may have a biased opinion.

find the surface area of the sphere to the nearest square unit. use a calculator.

a. 254 in.2

b. 64 in.2

c. 127 in.2

d. 1,018 in.2