There are many many fascinating things about water that make it different than any other chemical substance. For example, it is the only known compound whose solid state is less dense than it's liquid state. It also has hydrogen bonding which gives water many "weird" properties. Many chemistry teachers revolve their entire class around the properties of water.
H. O is the answer hope this helps
2
Answer: 1 : an observable fact or event. 2a : an object or aspect known through the senses rather than by thought or intuition. b : a fact or event of scientific interest susceptible of scientific description and explanation. More from Merriam-Webster on phenomenon.
Answer:
0-0 what is rhat supposed to mean. i dont think anyone can answer that lol
Answer: 3.21 N


For weight, we will multiply by 

Hence, the rock would weigh 3.21 N.