Which of the following is always involved in a scientific inquiry?
a.
knowing the correct answer before you start
b.
guessing what would happen instead of doing experiments
c.
coming up with questions based on observation and reasoning
d.
conducting surveys to ask people's opinions on various subjects

Both 1,2−dihydronaphthalene and 1,4−dihydronaphthalene may be selectively hydrogenated to 1,2,3,4−tetrahydronaphthalene. one of these isomers has a heat of hydrogenation of 101 kj/mol (24.1 kcal/mol), and the heat of hydrogenation of the other is 113 kj/mol (27.1 kcal/mol). match the heat of hydrogenation with the appropriate dihydronaphthalene.

Which of the following would have less momentum than a 52 kg cheetah running at 10 m/s?

Need ! asap will mark 10 pts using the room temperature line (orange line) and your periodic table, make lists that identify the state of matter (gas, liquid, or solid) in which each element you plotted exists at room temperature. explain your answers