1. Methane burns in oxygen, forming water and carbon dioxide according to the following equation:
CH (8) +202(g) → 2H2O(g) + CO2(g)
If 4 dm of methane is used, what volume of water is produced?​

in theory, limestone is composed principally of the compound calcium carbonate - caco3, but in reality this compound is deposited in conditions involving a number of other compounds as impurities so it ends up being a mixture of many compounds.

hope this : -)

tony (lordcaos066)

the molecules move in straight line until they collide with each other or with the walls of the container. collisions are perfectly elastic; when two molecules collide, they change their directions and kinetic energies, but the total kinetic energy is conserved.

explanation:

nacl is added to the aqueous of what? ? in order to get a proper answer you have to specify the exact composition of the aqueous solution.

i'm pretty sure its b i might be wrong though!