How many moles of mgs2o3 are in 249g of the compound

  the mississippians were considered to be  horticulturalists, which means they were

Question 3(multiple choice worth 4 points) (04.04 lc) what does it mean when an element is reduced? it empties a valance shell, reducing its atomic radius. it gains electrons, reducing its overall charge. it increases electronegativity, reducing its ability to bond. it loses electrons, reducing its electron number.

Is of of 3- ? a. 1--3- b. 1--2- c. 1--3- d. of