How many orbitals are there in the 3d sublevel?
A. One
B. Three
C. Five
D. Seven
Question 2
Balance the chemical equation given below, and determine the number of grams of MgO are needed to produce 10.0 g of Fe2O3 . ________ MgO(s) + ________ Fe(s) ________ Fe2O3(s) + ________ Mg(s)
A) 0.312 g
B) 0.841 g
C) 2.52 g
D) 7.57 g
Question 3
Radium undergoes alpha decay. The product of this reaction also undergoes alpha decay. What is the product of this second decay reaction?
A) Po
B) Rn
C) U
D) Th
E) Hg