are atoms or molecules with an electrical charge, either positive or negative. Whether a liquid is
an acid or a base depends on these. We classify acids
and base on the . A liquid on this scale with
a pH of 3 is a/an , while a liquid with a pH of
9 is a/an When an acid and a base interact
with one another the liquid can become ___
and it will have a pH of 7.

The answer to fill in the blank are: Acidic, Basic, pH Scale, Neutral, Ion

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?