Which of the following statements is true?
a. processes are spontaneous because they occur at an observable rate.
b. spontaneity can depend on the temperature.
c. processes that are spontaneous in one direction are spontaneous in the opposite direction.
d. all of the statements are true.

Astudent made the lewis dot diagram of a compound shown. what is the error in the lewis dot diagram? a)an o atom should transfer all of its six electrons to mg because the formula is mgo b) both electrons of mg should be transferred to one o adam because the formula is mgo c) the electrons should be transferred from each o add him to capital mg because mg has fewer electrons d) the number of dots around mg should be four because it has to transfer two electrons to each o

Which class of molecules functions as chemical signals? hormones water carbohydrates proteins

Anyone who's in connections academy chemistry b have the factors that affect the rate of a reaction portfolio already done?