The mass of the light bulb is the sum of the values on each rider. To get a magnified view of the 1-gram rider, place the cursor over that rider. (Each tick mark represents 0.1 g.) What is the mass of the light bulb?

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)