Chemistry, 30.07.2019 00:00 louiecampos
Asap in two or more complete sentences describe how atomic radius changes as you move down a group in the periodic table and why.
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Which produce would best increase the amount of heat energy that is actually gained by calorimeter b
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Why are people not able to scuba dive in the deep part of the ocean
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Which other elements contain the same number of outer electrons as sodium
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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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Asap in two or more complete sentences describe how atomic radius changes as you move down a group i...
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