A sample of Argon gas (Ne) has a volume of 2.10L at 28°C and a pressure of 0.512 atm. Calculate the number of moles of Argon present in this gas sample 0.0435 mol

0.468 mol

2.47 mol

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)