Hi Everyone! I just need help with a few science questions below. Any answer will be appreciated!
1. As osmolarity increases, what happens to tonicity?
2. How do lipids differ in chemical composition from carbohydrates?
3. What chemical is present in very large quantities in the universe e generally, but is almost nonexistent by itself in the Earth’s atmosphere?
4. What chemical elements are found in each type of organic compound associated with living organisms?
Thanks again!
Off the top of my head:
2. Lipids = Hydrocarbons (CH). Carbs = Hydrogen/Oxygen/Carbon arranged like so - Cm(H2O)n.
3. For real? 
Hydrogen, bro.
4. Let me see that CHO-O-ON~♪.
You shouldn't ask other people to do your homework for you, you know. Especially when you have access to the Google.
Thank you!! And its not homework. Its questions I have to review for a test I have in a day or two. My teacher is not exactly the teaching kind so its more like we are teaching ourselves. I just wanted to make sure i had the right answers before I take the test.