How much ca3(po4)2(s) could be produced in an industrial process if 55.00g of cacl2 in solution reacted completely wth sufficient na3(po4)(aq)

Which traits do human embryos have that link them to a common ancestor with fish and reptiles? a. scales and tail b. gill slits and scales c. tail and gill slits d. hair and tail

Which statement is best described as a atom

Long term exposure to waves can cause sunburns and skin cancer. a) visible b) infrared c) gamma rays d) ultraviole