2. Calculate the amount of heat in kilocalories produced by the burning of 52.4 g of methane (CH) in an excess of air according to the following equation:
CH, + 02 - CO2 + 2H,0 + 890kJ

specific gravity is the density of a substance divided by the density of water. since (at standard temperature and pressure) water has a density of 1 gram/cm3, and since all of the units cancel, specific gravity is usually very close to the same value as density

so "c" is the answer

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away from the curb

explanation:

the wheels would then hit the curb if it started to rolling, decreasing the chance of an accident.

it is a good conductor

explanation:

answer:

the reaction is type of combination reaction.

explanation:

on the product side, there are 2 molecules of bonded to fe   which means one atom of fe are combined two molecules of . so, balanced chemical equation becomes :

this reaction follows the reaction type of combination reaction. a combination reaction is defined as chemical reaction in which reactants combines together to form a single product.