An object is seen to either speed up, slow down, or change direction. these behaviors are caused by what ?

a. frictional force
b. stable factors
c. a balanced set of forces
d. unbalanced forces

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)

atomic number of carbon is 6

electronic configuration of carbon is 1s²2s²2p²

orbital diagram of c is as shown here in the image.