Rank the following samples in mass from least to greatest. a) 9 x 1023 S atoms b) 0.5 mol of Cu atoms c) 2 mol of N atoms d) 9 x 1023 Na atoms

Which object forms when a supergiant runs out of fuel? a red giant a black hole a white dwarf a neutron star

Light waves travel than sound waves.

Nitrogen dioxide decomposes according to the reaction 2 no2(g) ⇌ 2 no(g) + o2(g) where kp = 4.48 × 10−13 at a certain temperature. if 0.70 atm of no2 is added to a container and allowed to come to equilibrium, what are the equilibrium partial pressures of no(g) and o2(g)