Chemistry, 22.11.2021 14:50, PastyMexican24
Calculate the theoretical number of moles of hydrogen gas produced in trails 1 and 2
Answers: 3
Chemistry, 21.06.2019 21:30, KnMcdonaldk93906
Which substances have the lowest melting points: ionic covalent, or metallic
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Chemistry, 22.06.2019 05:00, happy121906
Which position represents spring in the southern hemisphere? a) b) c) d)
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Chemistry, 22.06.2019 11:40, Wemaybewrong
Modern pennies are composed of zinc coated with copper. a student determines the mass of a penny to be 2.482 g and then makes several scratches in the copper coaling (to expose the underlying zinc). the student puts the scratched penny in hydrochloric acid, where the following reaction occurs between the zinc and the hcl (the copper remains undissolved): zn(s) + 2 hcl(aq) → h2(g) + zncl(aq)the student collects the hydrogen produced over water at 25 °c. the collected gas occupies a volume of 0.899 l at a total pressure of 79 j mmhg. calculate the percent zinc (by mass) in the penny. (assume that all the zn in the penny dissolves.)
Answers: 1
Chemistry, 22.06.2019 13:00, wbrandi118
Using the thermodynamic information in the aleks data tab, calculate the standard reaction free energy of the following chemical reaction: →+p4o10s6h2ol4h3po4s round your answer to zero decimal places.
Answers: 3
Calculate the theoretical number of moles of hydrogen gas produced in trails 1 and 2...
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