Determine whether the relation is a function.     {(-8,7), (-2,10), (1,7), (-8,10)}

Determine the number of significant figures that are present in the set of figures below.  What is the best answer for the four numbers?                 35.00        0.00209           1.18            45000

A reaction must be nonspontaneous at all temperatures when

The equilibrium expression for Kc for the system (note: there are solid substances)                   CaSO3(s)   ⇌   CaO(s) + SO2(g)                is

Which of the following salt solutions is basic?

Which solution has the lowest pH (most acidic)?

Consider the Ka values for the following acids:C9H8O4,  3.0 x 10-4                 HOBr, 2.5 x 10-9               HOI, 2.3 x 10-11             HCN, 4.9 x 10-10                Which of the following is the strongest acid?

Identification question: Please identify the following artifact. 

Identification question: Which Hellenistic city is depicted in the following plan? 

Identification question: What is depicted on the Zvenigorodsky Seal?