Use the drop-down menus to identify the class of compounds to which each structure belongs. A skeletal chain goes up, down, up, down to C double bonded to O, up to O H. A skeletal chain goes up to O, down, up, down, up. A hexagonal ring is single bonded to C l on one corner. N has a pair of electron dots above, and is single bonded to R Superscript 1, wedge bonded to H, and wavy bonded to H.

c. because step up transformer steps up the input voltage i.e increases the input voltage  

the number of turns are greater on the secondary side of step up transformer  

transformer does not handle dc current

the mantle

explanation:

earth is divided into three layers: the crust or the outermost layer on which we live; the underlying, middle layer - the mantle - and the core (the innermost layer of earth).

i don,t know so just answer mine