Which molecule below has a central atom with the same hybridization as the carbon in formaldehyde (H2CO)? A. SO2
B. OCS
C. ICl3
D. I3-
E. C2H2

chemical changes occur when a substance combines with another to form a new substance, called chemical synthesis or, alternatively, chemical decomposition into two or more different substances. these processes are called chemical reactions and, in general, are not reversible except by further chemical reactions. some reactions produce heat and are called exothermic reactions and others may require heat to enable the reaction to occur, which are called endothermic reactions. understanding chemical changes is a major part of the science of chemistry.

the objects have the same charge.

how important do you think an instrument is to the musician who plays it?