Which of the following is not a type of energy? A. Electricity in a power cord.
B. Heat from an oven.
C. Light from a lightbulb.
D. Smoke from a fire.

Which statement correctly describes metallic bonds? a. they form when certain atoms lose electrons and other atoms gain electrons. b. they involve an attraction between anions and cations. they always involvpoth a metal and a nonmetal. d. they can only form between atoms of the same element. e. they form because electrons can move freely between atoms.

Structure of the atoms: discovery of the nucleus in 1909i need answering all of these questions

Which is the solubility product expression for caf2(s)?  [ca2+]/[f–]2  [ca2+][f2–]  [ca]+[f]2  [ca2+][f–]2