During a chemical reaction, an enzyme functions as a biological catalyst and lowers the activation energy. how does an enzyme lower the activation energy of a 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

One similarity and one difference between an element and a mixture of elements

How many oxygen atoms are there in 3.15 moles of hcl manganese (iv) oxide, mno2