Which element has the smallest atomic radius?
a. calcium
b. potassium
c. scandium
d. titanium
the answer is d. titanium

Some liquids can be distilled, but only at temperatures that are so high that it is impractical, or so high the compound decomposes. explain why distillation such compounds at significantly less than atmospheric pressure (some degree of vacuum) would solve this problem.

Anurse used a 0.02-mg/l solution of disinfection to clean a patients wound. what is the concentration of the solution expressed as a percentage?

The appropriate concentration for an iodine sanitizer is