"Which of the following pairs of elements would form an ionic bond? (Select all that apply.)
Pand CI
O Hand N
Kand F
Mg and

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

What method(s) do plants use to obtain nitrogen? select all that apply. absorb it from the atmosphere use bacteria to convert nitrogen to usable form obtain usable nitrogen compounds from the soil absorb nitrogen from water taken in at the roots

What produces wave a)sound b) heats c)transfer of energy d)vibrations