Chemistry, 26.12.2019 18:31 vapelordcarl69
Acompound is found to have a percent composition (by mass) of 85.63% c and 14.37% h. the molar mass of the compound was found to be 42.0 g/mol. which of the following is the empirical formula and the molecular formula, respectively a. c2h6 and c3h9 b. ch2 and c3h6 c. ch and c3h3 d. ch3 and c2h6 e. c2h3 and c4h6
Answers: 2
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An atom of sodium-23 (atomic number = 11) has a positive charge of +1. give this information, how many electrons does it have? how many proteins and neutrons does this atom have
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Predict whether the changes in enthalpy, entropy, and free energy will be positive or negative for the boiling of water, and explain your predictions. how does temperature affect the spontaneity of this process?
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Which of the following nuclei would be the least stable a 2 protons, 2 neutrons b 1 proton 1 neutron c 1 proton 3 neutrons d 1 proton 2 neutrons
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Acompound is found to have a percent composition (by mass) of 85.63% c and 14.37% h. the molar mass...
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