Chemistry, 10.12.2021 08:20, jcazares3558
Carbon-14 had a half-life of 5,730 years. A piece of wood has 1/4 the amount of carbon-14 that it should. How old is the piece of wood?
Answers: 3
Chemistry, 21.06.2019 16:30, monnicawilliam
Energy is released during which phase changes? check all that apply. boiling condensing depositing freezing melting subliming
Answers: 2
Chemistry, 22.06.2019 21:00, thebasedgodchri
Need what is special about water as a compound? how does water regulate climate? what drives water evaporation? why is the water vapor fresh water when it rises from the ocean? why might freshwater in the form of snow take longer to enter the water cycle again than liquid precipitation? what is an aquifer? what role do people play in the water cycle? plz just answer as many as you can ! thx if you !
Answers: 1
Chemistry, 22.06.2019 21:50, donttrip10
What is a main difference between a mixture and a pure substance? a mixture is only a liquid, but a pure substance can be in any state. a mixture looks the same throughout, but a pure substance does not.1 a mixture can vary in composition, but a pure substance has a set composlo a mixture can be made up of a single compound, but a pure substance car
Answers: 2
Carbon-14 had a half-life of 5,730 years. A piece of wood has 1/4 the amount of carbon-14 that it sh...
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