Which choice represents a pair of resonance structures? view available hint(s) which choice represents a pair of resonance structures? a. n⋅⋅≡c−s−h and n⋅⋅≡c−s: − : b. o⋅⋅=n⋅⋅−f: and : n⋅=o⋅⋅⋅−f: c. h−h and : i−i: d. o−s⋅⋅⋅=o⋅⋅: and : o⋅⋅=s⋅⋅⋅−o:

If a planet rotates 360 degrees during a 24 hour time period, what does that tell us about the planet? a. the middle of the planet is in darkness b. the seasons on the planet vary every day. c. the planet runs on a 12-hour time clock. d. the temperature on the planet varies daily.

Becquerel expected to find ( he developed the photographic plate that had sun-exposed minerals on top of it. becquerel expected to find ( he developed the photographic plate that had been in the closed drawer.

Identify the missing numbers below to show the result of multiplying the numbers (1.6 × 10-19)(5.0 × 106) = c × 10d