what is the values of a and b a. a=9/2, b= 12/2 b. a=15/2, b=9/2 c. a=16/3, b=15/3 d. a=9/2, b=13/2

Read the given expression. x = number of protons − number of core electrons which of the following explains the identity of x and its trends across a period? x is the effective nuclear charge, and it remains constant across a period. x is the screening constant, and it remains constant across a period. x is the effective nuclear charge, and it increases across a period. x is the screening constant, and it increases across a period.

In a reaction equation, where are the products located? a.) above the arrow b.) to the right of the arrow c.) to the left of the arrow d.) below the arrow

Which of the following is most likely true about water in chemical solutions?