Chemistry, 19.09.2019 02:00 dounutalien
U-238 has a half-life of 4.6 billion years. how much u-238 was present initially if 2 grams remain after 13.4 billion years?
Answers: 2
Chemistry, 21.06.2019 23:00
Layers of rock containing fossils, like the layers illustrated here, are most likely composed of rocks.
Answers: 2
Chemistry, 22.06.2019 04:00
You encounter a solution that is acidic and you decide to test it by adding a small amount of a strong acid. the ph lowers slightly but is approximately unchanged, and still remains acidic. what can you say about the solution? a. it is a buffer solution. b. it is not a buffer solution it is a strong acid solution. d. the solution has been neutralized. e. the solution has excess acid present
Answers: 1
Chemistry, 22.06.2019 13:00
Is 9 correct? and can someone me with 10? itโs due tomorrow, you
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Chemistry, 23.06.2019 00:00
How is the way a mixture is combined different from how a compound is combined?
Answers: 3
U-238 has a half-life of 4.6 billion years. how much u-238 was present initially if 2 grams remain a...
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