Chemistry, 13.01.2020 14:31 nakiyapulley7466
Asample contains 25% parent isotope and 75% daughter isotopes. if the half-life of the parent isotope is 72 years, how old is the sample?
Answers: 2
Chemistry, 22.06.2019 04:40
Silver tarnishes as silver metal reacts with hydrogen sulfide, h2s, in the air. in this reaction, dark silver sulfide, au2s, covers the surface of silver. when silver is polished, this coating of silver sulfide can be removed from the surface. this makes the silver shiny again. enter the coefficients that balance the tarnishing reaction equation. (type 1 for no coefficient.)
Answers: 2
Chemistry, 22.06.2019 05:20
Identify and describe the three ways that mutations affect organisms.
Answers: 1
Chemistry, 23.06.2019 03:00
Use the half-reactions of the reaction au(oh)3 + hi -> au +i2 +h2o to answer the questions
Answers: 1
Asample contains 25% parent isotope and 75% daughter isotopes. if the half-life of the parent isotop...
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