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The chart below shows the crystal shapes and melting points of two forms of solid phosphorus.
June 2017 NY Regents Chemistry Exam 49 The chart below shows the crystal shapes and melting points of two forms of solid phosphorus....
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Which diagram represents the potential energy changes during an exothermic reaction?
June 2017 NY Regents Chemistry Exam 43 Which diagram represents the potential energy changes during an exothermic reaction? Solution: An...
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Given the equation representing a chemical reaction at equilibrium in a sealed, rigid container:H2(
June 2017 NY Regents Chemistry Exam 42 Given the equation representing a chemical reaction at equilibrium in a sealed, rigid container:...
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A solid sample of a compound and a liquid sample of the same compound are each tested for electrical
June 2017 NY Regents Chemistry Exam 39 A solid sample of a compound and a liquid sample of the same compound are each tested for...
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Given the formula representing a molecule:Which statement explains why the molecule is nonpolar?
June 2017 NY Regents Chemistry Exam 38 Given the formula representing a molecule: Which statement explains why the molecule is nonpolar?...
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A student measures the mass and volume of a sample of copper at room temperature and 101.3 kPa. The
June 2017 NY Regents Chemistry Exam 33 A student measures the mass and volume of a sample of copper at room temperature and 101.3 kPa....
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Some information about the two naturally occurring isotopes of gallium is given in the table below.
June 2017 NY Regents Chemistry Exam 32 Some information about the two naturally occurring isotopes of gallium is given in the table...
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What occurs when a catalyst is added to a chemical reaction?
June 2017 NY Regents Chemistry Exam 24 What occurs when a catalyst is added to a chemical reaction? (1) an alternate reaction pathway...
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In chemical reactions, the difference between the potential energy of the products and the potential
June 2017 NY Regents Chemistry Exam 23 In chemical reactions, the difference between the potential energy of the products and the...
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When a reversible reaction is at equilibrium, the concentration of products and the concentration of
June 2017 NY Regents Chemistry Exam 22 When a reversible reaction is at equilibrium, the concentration of products and the concentration...
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