Most energy resources used by humans are nonrenewable. Which of the following is NOT a nonrenewable energy resource? Acoal
Bnatural gas
Coil
Dwind

7. what temperature is need to just dissolve 50 g of nh4cl in 75 g of water? '

List four observations that indicate that a chemical reaction may be taking place

Select the correct answer. why are scientific models important in the study of science? a. they always involve critical mathematical calculations. b. they scientists understand complex ideas and objects that aren’t easy to handle. c. they enable scientists to popularize their work in society. d. they are required when conducting any peer review process. e. they are necessary for turning a hypothesis into a law.