element q reacts with dilute acids but not with cold water . element r does not react with dilute acids . element s displaces p from its oxide . p reacts with cold water . arrange the four elements in order of their reactivity, starting with most reactive. please help, answer me the right answer​

the answer to your question is c.

if you read the house of usher you should know that the house was haunted

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 a! (2.9 x 10^-18 j) hope i could someone. : )