Biology, 30.07.2020 06:01 Anshuman2002

The isotope samarium-151 decays into europium-151, with a half-life of around 96.6 years. A rock contains 5 grams of samarium-151 when it reaches its closure temperature, and it contains 0.625 grams when it is discovered. The time since the rock reached its closure temperature is ( ) years. When the rock was discovered, it had ( ) grams of europium-151.

Answers: 3

Show answers

Other questions on the subject: Biology

Biology, 21.06.2019 20:00, awdadaddda

Aresearcher has developed two stains for use with seed plants. one stains sporophyte tissue blue; the other stains gametophyte tissue red. if the researcher exposes pollen grains to both stains, and then rinses away the excess stain, what should occur? a) the pollen grains will be pure red. b) the pollen grains will be pure blue. c) the pollen grains will have red interiors and blue exteriors. d) the pollen grains will have blue interiors and red exteriors.

Answers: 1

continue

Biology, 22.06.2019 02:00, dj129239

Identify the terms using the following picture. principle of dominance item 1 can be described as the . item 2 can be described as the . the "p" represents from one parent.

Answers: 3

continue

Biology, 22.06.2019 06:30, SMNS625

Ascientist is examinin the cell is disrupted when she damages one specific type of macromolecule g the function of macromolecules in a cell she notices that movenent of large molecules into and out of

Answers: 1

continue

Biology, 22.06.2019 14:00, veronicacalyn

If t=tall and t=short what will be the physical appearance of the offspring the cross below? a. some will be tall and some will be short b. they will all be tall c. they will all be short d. they will be medium height

Answers: 2

continue

You know the right answer?

The isotope samarium-151 decays into europium-151, with a half-life of around 96.6 years. A rock con...