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How many bonds can nitrogen have? Which rule or principle should be used? A) Five bonds; octet rule. B) Three bonds; octet rule. C) Three bonds; the Hund's rule. D) Five bonds; the Aufbau Principle. correct answer: B When two hydrogen atoms meet, they will attract to each other and form a bond (and a H2 molecule). Why? A) Because electrons like to stay together. B) Because electrons like to be paired up. C) Because there is attraction between the electron in one hydrogen atom an...

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CHEM 120 FINAL EXAM PRACTICE QUESTIONS & ANSWERS: (TCO 12) The DNA double helix is _____. (Pts. : 5) made up of two polynucleotide strands composed of adenine and thymine a puzzle to geneticists composed of adenine and guanine composed of two chromosomes

Chem 120 final exam questions and answers 2024

Chem 120 final exam questions and answers 2024

Chem 120 final exam questions and answers 2024.

molecular mass (molecular weight) correct answer: the sum of the atomic masses, in atomic mass units, of all the atoms in the formula of a compound empirical formula correct answer: a chemical formula showing the ratio of elements in a compound rather than the total number of atoms Avogadro's number (Mole) correct answer: 6.02 x 10^23 proton correct answer: A subatomic particle that has a positive charge and that is found in the nucleus of an atom neutron correct answer: A suba...