Chemistry, 09.04.2020 22:29 viktoria1198zz
Match the following elements with their symbols. 1. mercury Ag 2. silver Au 3. gold Hg 4. aluminum Mg 5. iron Ca 6. helium Ni 7. calcium Al 8. magnesium Fe 9. nickel He
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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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Uranium can supply energy for the worlds electricity without admitting harmful greenhouse gases which of these statements best describes an outcome of uranium mining
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Match the following elements with their symbols. 1. mercury Ag 2. silver Au 3. gold Hg 4. aluminum M...
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