What are the formal charges on nitrogen and the starred oxygen atom in the following molecule?

Which of the following molecules has a net dipole moment of zero?

The conjugate acid of H2O is

What is the conjugate base of CH3NH2?

What is the product formed from the following acid-base reaction when ammonia functions as a base? The equilibrium lies far to the reactants.

Select the negation of :     No hot days are cold.  

Let p and q represent the following statements:     p:  8 + 5 = 10       q:  7 X 2 = 14   Determine the truth value for the statement: 

Determine if the two statements are equivalent. ~p 

Translate the argument into symbolic form. Use the truth table to determine whether the argument is valid or invalid. You may make more columns than are given.   If it is hot and humid, then I complain. It is not hot or it is not humid. Therefore, I am not complaining.  

Choose the correct symbolic pattern for the following argument, and determine whether the argument is valid or invalid.   If I know the logic patterns, then I can make a good grade on this test. If I make a good grade on this test, then the good grade will help my course average. Therefore, if I know the logic patterns, then the good grade will help my course average.