Which substance would be most suitable for row 3? sodium chloride (nacl) silver (ag) nitrogen (n) propane (ch)?

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

The velocity of any object depends upon a) the location of the object. b) the location of the observer. c) which measurement tools are used. d) the relative motion of the observer.

Which of the following are in a chemical family a. ca, sc, k b. cu, ag, au c. so, ge, sb