Question #1
How many back blows should be given to an infant?
None, unless the infant is obese
Two for every 15 compressions
Five with enough force to dislodge the object
O As many as possible, to make sure the object is cleared

Five with enough force to dislodge the object

Explanation:

You do five back blows then flip the child over and do five on the front. Continuing until the object is dislodged.  

                                                        water

a colorless, transparent, odorless, tasteless liquid that forms the seas, lakes, rivers, and rain and is the basis of the fluids of living organisms.

                                                        halon  

any of a number of unreactive gaseous compounds of carbon with bromine and other halogens, used in fire extinguishers, but now known to damage the ozone layer.

                                                  dry chemical

extinguishing agent used on class a, class b, and class c fires.

                                                  carbon dioxide

a colorless, odorless gas produced by burning carbon and organic compounds and by respiration. it is naturally present in air (about 0.03 percent) and is absorbed by plants in photosynthesis.