Based on the periodic table shown, elements from columns A and B will combine in which ratio? a.
1 A : 2 B

b.
1 A : 1 B

c.
These elements will not combine.

d.
2 A : 1 B

Identify one disadvantage to each of the following models of electron configuration: dot structures arrow and line diagrams written electron configurations type in your answer below.

The graph above shows how the price of cell phones varies with the demand quantity. the equilibrium price for cell phones is where both supply and demand quantities equal $100, 5,000 5,000, $100

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?