A5.0-gram sample of zinc and a 50.-milliliter sample of hydrochloric acid are used in a chemical reaction. which combination of these samples has the fastest reaction rate?
(1) a zinc strip and 1.0 m hcl(aq)
(2) a zinc strip and 3.0 m hcl(aq)
(3) zinc powder and 1.0 m hcl(aq)
(4) zinc powder and 3.0 m hcl(aq)
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An atom with 7 protons, 6 neutrons, and 7 electrons has an atomic mass of amu. (enter a whole number.) numerical answers expected! answer for blank 1:
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A5.0-gram sample of zinc and a 50.-milliliter sample of hydrochloric acid are used in a chemical rea...
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