Imagine you are a famous chef cooking spaghetti for your favorite chemistry teacher – he is very interested in your technique and would like to know more about the chemistry behind your amazing cooking! how much would the boiling point of 1l of your pasta water change if you added 20g of nacl to it?

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)