Calcium carbonate reacts with hydrochloric acid, forming calcium chloride and carbon dioxide gas. Propose the equation if the reaction, balance it and find out how many grams of calcium carbonate is
needed to produce 20 liters of carbon dioxide gas.

h let me think

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

plasma is the state of matter where the substance is ionized and has no definite shape or volume. the fact of being ionized makes the substance a good electrical conductor.