Various chemicals are being used to combat the COVID-19 virus (look up some of the chemicals being used and why). How have countries used these chemical compounds to try and fight the epidemic and which countries have done the best job?
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radioactive decay occurs in unstable atomic nuclei – that is, ones that don't have enough binding energy to hold

the nucleus together due to an excess of either protons or neutrons.

it should be all of them because it asks if you included all of those in your answer

explanation:

warm front forms when a moist, warm air mass slides up and over a cold air mass. as the warm air mass rises, it condenses into a broad area of clouds. a warm front brings gentle rain or light snow, followed by warmer, milder weather.

hope i !