The denser and thicker a liquid is, the higher the buoyancy of an object is. In other words, if the density of a certain fluid is greater than the density of an object. The object will have negative buoyancy. If the density of the fluid is less than the density of an object, then it will float so positive buoyancy. Is this true

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?