Nitrogen gas reacts with hydrogen gas to form ammonia, a common cleaning liquid when diluted with water. Which equation is correct for this reaction

N2(g) + 3H2(g) <---> 2NH3(g)

This is a reversible reaction

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)

under a microscope, cancer cells may look very different from normal cells. they often have different sizes and some may be larger than normal while others are smaller. cancer cells are often abnormally shaped and the control centre of the cell (the nucleus) may have an abnormal appearance.

i think? ?