Which one of these chemical equations is already balanced? (Hint: count how many of each kind of atom on each side). You can use scratch paper.
Ca + 202 - 2Cao,
2Ca + 02 - 2Cao
Ca + 0, - Cao
Ca + 20
2Ca + O2

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

2b2t

explanation:

2b2t

a saline water is fed to a reverse osmosis unit at flow rate o rotameter connected to reject (retentate) line reads 8 installed in reject and permeate line reads 15.2 milli siemens/cm and 300 micro siemens/com respectively.