What is the best title of group1 [paper clip, iron nail, copper penny]
objects that conduct electricity or objects that make good insulators

Which atom or ion is the largest? a. k b. k+ c. ca d. ca2+ e. li

In which of the following phases of matter do molecules have the highest amount of energy? a. liquid b. gel c. solid d. gas

The equation below shows the reaction of zinc with hydrochloric acid (hcl). zn (s) + 2 hcl (aq) —> zncl2 (aq) + h2 (g) what will happen if the concentration of hcl is decreased? a. more zncl2 will be produced. b. the reaction rate will slow down. c. the hydrochloric acid will become more acidic. d. the reaction will produce water instead of hydrogen gas.