Aperson's heartbeat is 66 beats per minute. if his/her heart beats 3.1e9 times in a lifetime, how long (in whole years) does the person live? disregard leap years.

Consider the elements bromine and chlorine; which elements has a larger ionic radius ?

Imagine one batch of soup (batch “a”) is made with 8.19 g/can of salt, according to the recipe, and a second batch of soup (batch “b”) is made with 8.32 g/can of salt. explain which batch would be more resistant to frost damage if it is shipped a great distance in winter and explain why.

The plant food contains nh4)3po4 what tests would you run to verify the presence of the nh4 ion and the po4 ion