Chemistry, 03.07.2019 23:00 miner12924owhu4d
In a body-centered cubic structure, every atom (except those on the surface) has eight neighbors. which arrangement of balls serves as the best model for this structure? a)eight balls at the corners of a cube b)eight balls at the corners of a cube, and one ball in the center of the cube c)eight balls arranged equally apart from each other around a circle d)eight balls at the corners of a cube, and six balls in the centers of the cube’s faces
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Chemistry, 22.06.2019 00:00
Substance x has a fixed volume, and the attraction between its particles is strong .substance y had widely spread out particles and can be compressed what can most likely be concluded about these substances
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Chemistry, 22.06.2019 11:40
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, 23.06.2019 08:40
The half-life of a certain element is 100 days. how many half-lives will it be before only one eighth of this elementremains?
Answers: 1
In a body-centered cubic structure, every atom (except those on the surface) has eight neighbors. wh...
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