First to answer correctly gets brainleist Which lunar phase will occur approximately 7 days after a first quarter moon?

a
New moon
b
Full moon
c
Waxing crescent
d
Waning crescent

Is powdered sports drink ionic or covalent ? 10pts !

How can parts of a solution be separated by chromatography?

The combustion of methane, ch4, releases 890.4kj/mol. that is, when one mole of methane is burned,890.4 kj are given off to the surroundings. this meansthat the products have 890.4 kj less than the reactants.thus, ah for the reaction = - 890.4 kj. a negative symbolforah indicates an exothermic reaction.ch (g) + 20 (g)> co2 (g) + 2 h0 (1); ah = - 890.4 kga) how much energy is given off when 2.00 mol of ch,are burned? b) how much energy is released when 22.4g of ch. areburned?