Chemistry, 18.02.2020 18:56 Animallover100
The half life for the decay of carbon- is years. Suppose the activity due to the radioactive decay of the carbon- in a tiny sample of an artifact made of wood from an archeological dig is measured to be. The activity in a similar-sized sample of fresh wood is measured to be. Calculate the age of the artifact.
Answers: 3
Chemistry, 22.06.2019 02:00
The alkali metals (group 1) consist of lithium (3), sodium (11), potassium (19), rubidium (37), cesium (55), and francium (87). they are soft, metallic solids with low densities and low melting points. based on the data shown in figure 1, how many valence electrons do alkali metals share?
Answers: 3
Chemistry, 22.06.2019 19:30
Astudent conducts an experiment to determine how the amount of water given to a plant affects its growth. what is the independent variable for this experiment?
Answers: 1
Chemistry, 22.06.2019 22:30
Calculate the concentration of all species in a 0.165 m solution of h2co3.
Answers: 1
The half life for the decay of carbon- is years. Suppose the activity due to the radioactive decay o...
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