Arock has a mass of 13.0 g and displaces a volume of 3.9 ml of water in a graduate cylinder. what is the density of the rock? (write your number to 2 places after the decimal)

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 does the mass of 0.7891 mol of ferric oxide (fe2o3)

Which of the following statements about hybrid orbitals is or are true? choose all that apply. choose all that apply. under sp2 hybridization, the large lobes point to the vertices of an equilateral triangle. after an atom undergoes sp hybridization there is one unhybridized p orbital on the atom. the angle between the large lobes of sp3 hybrids is 109.5∘