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Chemistry, 22.06.2019 13:10, kellinvagneur
Which electron configuration represents the electrons in an atom of sodium in the ground state at stp
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Chemistry, 22.06.2019 17:20, banna01man
Pegmatites are igneous rocks in which the individual minerals are very large. typically, the minerals are all light-colored quartz, feldspar and muscovite. if you were given a black and white photograph of a pegmatite in a quarry (where the rock has been blasted and broken), what physical properties could you use to identify those three minerals in this hypothetical photo? describe each mineral and the specific diagnostic properties. be specific.
Answers: 2
Chemistry, 22.06.2019 20:30, huangjianhe135
The activation energy for the reaction no2(g)+co2(g)⟶no(g)+co(g) is ea = 300 kj/mol and the change in enthalpy for the reaction is δh = -100 kj/mol . what is the activation energy for the reverse reaction?
Answers: 3
How is Oxygen -18 different from oxygen -16?...
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