Compare the properties of elements in groups 17 and group 18. Make sure to cover the following points: a. What type of elements are found in each group?
b. Describe the reactivity of the elements in each group
c. Are the properties of both groups of elements different or similar?
d. Explain why the two groups of elements have been placed side by side.

How does decreasing the gas volume affect the pressure of a gas?

1.aluminum chloride (alcl3), and sodium hydroxide (naoh) can react to form aluminum hydroxide (al(oh)3) and sodium chloride (nacl).    you have 13.4 g of aluminum chloride and 10.0 g of sodium hydroxide. answer the following questions: •what is the balanced equation for this reaction? •if you use all 13.4 g of aluminum chloride, how many grams of aluminum hydroxide can be formed? work must be shown to earn credit •if you use all 10.0 g of sodium hydroxide, how many grams of aluminum hydroxide can be formed? work must be shown to earn credit •how many grams of aluminum hydroxide will actually be made?     which reagent is limiting? explain your answer.

Calculate the number of molecules present in 0.750 mol of mgo.