Chemistry i'll give 30 ! use table 1 below to answer the following question: scientists find a piece of wood that is thought to be from an ancient fire circle. they find that the wood contains an amount of carbon-14 (14c) that is approximately 1/16 of the current atmospheric c14 levels. determine approximately how many years ago the tree was chopped down to be used for the firewood. (only use numbers in your answer)

What is the number of atoms in 3.54 mol s

How many moles of potassium hydroxide are needed to completely react with 2.94 moles of aluminum sulfate

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.