Magnesium exist in 3 isotopic form mg. 25 mg. 20 mg with natural abundance of 78.99%, 10 %, and 11.01% respectively. calculate the average atomic mass of mg (show your work)

What are the genotypic and phenotypic ratios

The human activities in two locations are described below: location a: rampant use of plastic containers location b: excessive use of pesticides and fertilizers which statement is most likely true? location a will have poor air quality because plastic is biodegradable. location a will experience water scarcity because plastic absorbs moisture. the population of honeybees will increase in location b because production of crops will increase. the population of fish in location b will decrease because the water is contaminated.

When the mercury level in a barometer decreases that atmospheric pressure has