Ethane (C2H6) burns in air to form carbon dioxide and water. If 25.50 L of ethane burns, how many liters of CO2 would be produced at STP?

Concerning the 10.0 ml of 0.50 m nacl to 100 ml of solution: when a solution is diluted, does it change the number of moles dissolved?

What is the atomic number of an atom that has 6 protons

Kelly has come up with an explanation for why her sister is sometimes in a good mood and other times in a bad mood. she speculates that it is based on the hours of sleep her sister got the previous night. this explanation for her sister's behaviors is an example of a(n)