4. Write the chemical formulas for the following compounds: a. lithium oxide (ionic)
b. carbon monoxide (covalent)
C. carbon tetrachloride (covalent)
d. nitrogen trifluoride (covalent)
e. calcium chloride (ionic)

Iknow the answer to 13 is b and 14 is d. i just need to know why the correct answers are correct

(apex) when a cup of water is dropped, as the cup falls, the water in the cup falls out true or false?

You mix the pks of succinic acid are 4.21 and 5.64. how many gramsa graduate student at sdsu wants to measure the activity of a particular enzyme at ph 4.0. to buffer her reaction, she will use a buffer system based on one of the acids listed below, which acid is most appropriate for the experiment? of monosodium succinate (fw = 140 g/mol) and disodium succinate (fw = 162 g/mol) must be added to 1 l of water to produce a solution with a ph 5.28 and a total solute concentration of 100 mm? (assume the total volume remains 1 liter, answer in grams monosodium succinate, grams disodium succinate, respectively.) volumes of 0.05 m nah2po4 and 0.05 m na2hpo4 (pk's for phosphoric acid are 2.15, 6.82 and 12.38). which of the following best describes the resulting solution?