Ca3(PO4)2 + 3H2SO4  3CaSO4 + 2H3PO4. What mass of concentrated H2SO4 (98% by mass) must be used to react completely
with 100.00 g of calcium phosphate?

"the periodic table is arranged in order of atomic number."

the major pests we deal with are insects, weeds and fungal diseases. a pesticide is a product, whether organic or chemical, used to kill the target pest. there are other techniques gardeners should use that can prevent the severe infestations that make the use of pesticides necessary