SEP Interpret Data The table shows several combination reactions and the
estimated reaction energy based on
bond breaking and forming energies.
What pattern do you notice concerning
the energy for combination reactions?

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)

d: the voltage of the secondary coil is less than that of the primary coil.

im not suree sorry if wrong

im pretty sure its b