Scientists can determine if oxygen existed in earth's archean atmosphere by
a. determining the...
Chemistry, 09.01.2020 14:31, salvadorperez26
Scientists can determine if oxygen existed in earth's archean atmosphere by
a. determining the lack of oxidation that occurred.
b. determining how many people survived.
c. looking at the amount of salt content in rocks.
d. looking for oxidized iron in rocks.
Answers: 2
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Astring vibrates with a frequency of 10 hz. why can't a person hear the sound waves produced by the vibrating string, no matter how large the amplitude of the waves? out! this is homework and due tomorrow! you so much!
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Why is any chemical reaction always balanced? give reasons and explain the easiest way to solve the balancing problems in chemical equations with stoichiometric coefficients upto 20 as hit and trial doesn't always work. give full reasoning
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