Which of the following statements is true?

A. The percentage yield of a reaction can be over 100%.
B. A high atom economy means that most of the starting materials end up as waste products.
C. The actual yield of a reaction is the amount of product you expected to make.
D. A reaction with a high percentage yield is an efficient reaction.

Which is a difference between molecular compounds and ionic compounds? select the correct answer below: question 5 options: molecular compounds typically form between a metal and a nonmetal, while ionic compounds typically form between nonmetals. molecular compounds result from the transfer of electrons between atoms to form ions, while ionic compounds result from the sharing of electrons between neutral atoms. molecular compounds are formed of discrete, neutral molecules, while ionic compounds are formed of large repeating arrays of opposite charges. molecular compounds have high melting points and high boiling points, while ionic

What happens to isotopes that are unstable?

What happens to the average kinetic energy of a gas when the particles of the gas collide against each other at a constant temperature and volume? explain your answer.