Look at the location of elements A,B,C,and D in the following periodic table.The oxide of which element in its highest oxidation state can react with both H+(aq) and OH-(aq) ? 
Definitions:
Income
The financial gain or revenue received by an individual or entity in exchange for providing labor or through investments.
Research and Development
The investigative activities a business conducts to improve existing products and procedures or to lead to the development of new products and procedures.
Rate of Return
The gain or loss on an investment over a specified period, expressed as a percentage of the investment's initial cost.
Expenditure
The total amount of money spent by an individual, firm, or government on goods and services.
Q2: Which of the following can function as
Q28: The entropy change associated with the expansion
Q33: Why is CaCO<sub>3</sub> added to a blast
Q54: What is the structure of white phosphorus?<br>A)cage
Q74: The short hand electron configuration of iron
Q91: What statement is inconsistent with the chemistry
Q112: What is the entropy of 10<sup>5</sup> molecules
Q127: For a spontaneous process<br>A)energy and entropy are
Q132: Which has the largest atomic radius?<br>A)Sc<br>B)V<br>C)Ni<br>D)Zn
Q172: Which ion has cis and trans isomers?<br>A)[PdCl<sub>3</sub>NH<sub>3</sub>]<sup>-</sup><br>B)[Pt(CN)<sub>5</sub>NH<sub>3</sub>]<sup>-</sup><br>C)[PtCl<sub>2</sub>(CN)<sub>2</sub>]<sup>2-</sup><br>D)[Pt(C<sub>2</sub>O<sub>4</sub>)<sub>2</sub>]<sup>2-</sup>