Homework2.docx - Homework 2 CHEM 101 Chapter 3 45 a P2O5 b...

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Homework 2: CHEM 101 Chapter 3: 45. a) P 2 O 5 b) H 2 S 1 c) Ca 3 N 2 d) C 12 H 22 O 11 55. a) cadmium fluoride- ionic compound b) sulfur dioxide- molecular compound 71. The Lewis model shows how the ammonia molecule is connected by a covalent bond. The geometric sketch shows the bond angles of the nitrogen and hydrogens in the ammonia molecule. The ball and stick model shows the molecules correct shape and displays the covalent bonds more accurately. The space filling model shows the electron charge clouds for the atoms in NH 3 . 73. Hydrogen and oxygen are the particles that form water H 2 0. The water molecule is electrically neutral. The hydrogen forms a covalent bond with the oxygen, this happens due to the oxygen attracting the hydrogen atoms. Visual:
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