2c. Draw the Lewis (dot) structure of the following compound
i. NH3 ii. H2O iii. HF (**identify the bond and lone pair electrons)

Can someone me with questions 12 and 13 plz.

Which would freeze at a higher temperature: the great salt lake or lake tahoe? a. lake tahoe would freeze at a higher temperature. b. the great salt lake would freeze at a higher temperature. c. both lakes would freeze at the same temperature.

Scientists often deal with numbers that are either very large or very small. for example, the radius of the sun is approximately 696,000 kilometers, while bacterial cells are as small as 1.9 × 10-4 millimeters. express each of these numbers in an alternate form.