Which compound of an element in period 3 reacts with water to form a solution with a ph greater than 7?
a. sio2
b. sicl4
c. nacl
d. na2o

Asolution contains 225 g of sodium chloride, nacl, dissolved in enough water to make a 0.25 l of solution. what is the molarity of the solution?

This chart lists four kinds of polymers and their sources. what can be known about all four polymers, despite their differences? they come from living things. they share ionic carbon bonds. they are at least 100 monomers long. they are made of repeating subunits.

George is a dalmatian puppy. describe what happens to light that allows you to see george’s black and white coat.