Specific Heat of Water* O 2.02 J/g *°C
O2.06 J/g*°C
04.18 J/g*°C
O AHfus = 334 J/g
O AHvap = 2260 J/g
Q = (m) (cp) (AT)
Q = (m)(AHfus)
Q = (m) (AHvap)

chemistry sucks a**

explanation:

answer:

the answer is 6 valence electrons.

explanation:

valence is the # of electrons on the outer most shell of an atom.

oxygen has 6.

although, the valency of oxygen is 2, because it only needs to make 2 covalent bonds, or gain 2 electrons, to achieve the stable octet configuration of a noble gas.

that's it!

if you need further assistance, let me know: )

~ trueboss72

a gas, having a molecular weight of 13 kg/kmol and a kinematic viscosity of 0.25 cm2/s, flows through a pipe 0.25 m internal diameter and 5 km long at the rate of 0.4 m3/s and is delivered at atmospheric pressure.