naturally occurring iron , fe, contains 4 isotopes: 5.82% (53.94 amu), 91.66% (55.935 amu), 2.19% (56.935 amu), and 0.33% (57.933 amu). calculate the average atomic mass of iron.

The way individuals think, believe, and behave defines their: a. intellectual wellness b. personality c. self-esteem d. self-actualization

Healing after the death of a loved one is most difficult when: a) the bereaved is not allowed to mourn in the way he or she wishes b) the death is a long, protracted one c.) a period of grief has already elapsed d) no other mourners are present

Keys to preventing a fall from a ladder include choosing the right ladder for the job and tying the top and bottom of the ladder to fixed paints. what else can you do to keep safe when using a ladder?