1. Rank the masses of the elements from lightest to heaviest. a. B
b. H
c. U
d. O
d. Са
e. Pb
f. Xe
g. Ga
h. Ne
1. Heaviest
2. Lightest
2. What are the chemical symbols of the following elements: lithium, beryllium, sodium, magnesium, titanium, carbon, nitrogen, oxygen, fluorine, and krypton?

You encounter a solution that is acidic and you decide to test it by adding a small amount of a strong acid. the ph lowers slightly but is approximately unchanged, and still remains acidic. what can you say about the solution? a. it is a buffer solution. b. it is not a buffer solution it is a strong acid solution. d. the solution has been neutralized. e. the solution has excess acid present

Isopropyl alcohol, (ch3)2choh, is a common solvent. determine the percent by mass of hydrogen in isopropyl alcohol. a) 6.71% h b) 13.4% h c) 25.0% h d) 53.3% h

The independent variable in an experiment will be the variable that you o a) change ob) hold constant ng c) observe for changes