The molar mass of magnesium (mg) is 24.30 g/mol. there are 6.02 mc022-1.jpg 1023 atoms in 1 mol. how many atoms are present in 48.60 g of mg?

Ineed with a, b, c, d, and e on the long answer

Consider the nuclear equation below. 239/94 pu—-> x+ 4/2 he. what is x?

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)