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Chemistry, 22.06.2019 10:50
An atom of lithium-7 has an equal number of(1) electrons and neutrons(2) electrons and protons(3) positrons and neutrons(4) positrons and protons
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Chemistry, 22.06.2019 20:30
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?
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Chemistry, 22.06.2019 23:30
The ammonia molecule in the diagram has the observed bond orientation because
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Chemistry, 23.06.2019 07:00
Scuba divers use tanks of compressed air to them breathe. gases can be compressed because?
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How many electrons in the 4 and 5th shell?...
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