Lack of food, natural disasters, disease, and predation are reasons why a population might decrease in size. True or false

Elements in group 2 are all called alkaline earth metals. what is most similar about the alkaline earth metals?

Which symbol can be used to indicate the pressure at which a chemical reaction is carried out? 25°c 2 atm pa

4. propanol and isopropanol are isomers. this means that they have a) the same molecular formula but different chemical properties. b) different molecular formulas but the same chemical properties. c) the same molecular formula and the same chemical properties. d) the same molecular formula but represent different states of the compound