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How many moles is 25g of ammonia (NH3) pls show steps and answere asap
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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.)
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Chemistry, 23.06.2019 01:00
What is the chemical name of the compound ti2o3? use the list of polyatomic ions and the periodic table to you answer.
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Chemistry, 23.06.2019 01:00
Aman applies a force of 500n to push a truck 100m down the street how much does he do?
Answers: 1
How many moles is 25g of ammonia (NH3) pls show steps and answere asap...
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