Gravity is due to: A. the pull between any objects with mass.
b. the pull between Earth and the moon.
c. the pull between atomic nuclei.
d. the pull between the Sun and Earth.

Check the correct box to describe the periodic trends in electronegativity. electronegativity across a period: decreases. increases. electronegativity down a group: decreases. increases.

Consider the reaction: n2(g) + o2(g) ? 2no(g) kc = 0.10 at 2000oc starting with initial concentrations of 0.040 mol/l of n2 and 0.040 mol/l of o2, calculate the equilibrium concentration of no in mol/l how would this be done?

How many moles are in 43.9 l of oxygen