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An alpha particle is: a hydrogen atom a nucleus of helium two neutrons an electron
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Which best describes the present-day universe? opaque, expanding very slowly, stars produce heavy elements transparent, expanding at an accelerated rate, stars produce heavy elements opaque, expanding at an accelerated rate, stars produce only hydrogen and helium transparent, expanding very slowly, stars produce only hydrogen and helium
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Chemistry, 23.06.2019 17:00
Identify the missing coefficient in the balanced equation and classify the type of reaction. mg(oh)2 + h2so4 ⟶ mgso4 + 1; combustion 1; neutralization 2; combustion 2; neutralization
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Chemistry, 24.06.2019 01:30
The potential energy diagram shows the gain and loss of potential energy as water molecules decompose into hydrogen and oxygen. label the parts of the diagram.
Answers: 3
Use the periodic table to determine the electron configuration for iodine (i). express your answer i...
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