we looked at the acrylonitrile molecule, c3h3n, in the previous exercise. which of the following statements about the molecule is or are true? i. the c—c single bond results from overlap between an sp hybrid and an sp 2 hybrid. ii. there are two unhybridized p orbitals on the n atom. iii. all the atoms in the molecule lie in the same plane.

What overall charge must all compounds have

In a copper wire, a temperature increase is the result of which of the following

Observation and experimentation have led many scientists to accept a theory about the origin of the universe. this theory is called the big bang theory. scientific evidence collected and observed by scientists around the world suggests that the universe is ever expanding from a hot and dense initial state. what makes this a scientific theory? (2 points)