i really need it by tomorrow this question is 60 points :) and if you answer it i’m gonna like all of you questions you have answered! p. s click the picture to see it all of the questions are there

What happens to energy in an open system?

The table describes how some substances were formed substance 19 description formed by boiling pure water formed by combining three hydrogen atoms to every nitrogen atom formed by adding 5 g of sugar to 1 l of water formed by compressing carbon under high pressure based on the given descriptions, which substance is most likely a mixture?

What is the mass of each element in a 324.8 sample of co2