Which of the following will be a precipitate (a solid) in a double displacement reaction?
Select one:
a. (NH4)2S
b. PbCl2
c. Na, C03
d. K2SO4

In a floral arrangement, the focal area is often

This is a characteristic of the elements in the periodic table that shows a pattern. it may increase or decrease across or down the table.

Which of the following are sources of revenue for media companies? a. direct sales to producers b. advertising and subscriptions c. online purchase d. capital investments