Iwould greatly appreciate someones assistance in answering this question: which of the following is true for cpr chest compressions? a. compressions should be between 2.5 and 3 inches. b. 50 compressions should be followed by 2 rescue breaths. c. 100 compressions should be performed every minute. d. elbows should be relaxed.

                                                        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.