Chemistry, 12.11.2019 04:31, phebusadrian01
Ineed
a rubidium isotope has a half-life of almost 50 billion years. given that scientists estimate earth's age to be 4.6 billion years, what is the most likely percentage of parent to daughter isotopes of this element currently existing on earth?
Answers: 2
Chemistry, 21.06.2019 20:30, Averybeam300
Five students had to answer the question how are elements arranged in a periodic tabledamon: i think the elements are arranged by increasing massflo: i think the elements are arranged according to their properties sienna: i think the elements are arranged by when their discovers kyle: i think the elements are arranged according to how common they areglenda: i don't agree with any of themwho is right
Answers: 1
Chemistry, 22.06.2019 20:00, AaronEarlMerringer
What is the molar mass of the anhydrous compound? answer using four significant figures. 36.02 g/mol 120.15 g/mol 156.12 g/mol
Answers: 1
Chemistry, 23.06.2019 03:00, andrejr0330jr
Which of the following is a chemical property of water at 4 c
Answers: 2
Ineed
a rubidium isotope has a half-life of almost 50 billion years. given that scient...
a rubidium isotope has a half-life of almost 50 billion years. given that scient...
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