Know 24,0g calcium fire 20 9,14kcal ; 142g phosphor chas toa 74kcal; 16 8G Calcium Oxide works with 142g De nthophore Pentaoxide radiant 160.5k cal (thermal effect in the conditio n of the condition). Calculate the  standard of calcium phosphate cryst al? 

it is called acid bonding

shield volcanos are angry and get mad over the smallest things so much that there heads erupt   pahoehoe and a'a lava. a composite volcano is the poller opposite of a shield volcano. its   peaceful thing and knows how to control its emotions.      

the answer is c. nacl