Aluminum reacts with aqueous chromium(II) oxide to form aluminum oxide and chromium. If I start with 217.0 grams of chromium(II) oxide and 189.0 grams of aluminum, how many grams of aluminum oxide can be formed?

Nonmetal halogen family atmoic mass 35

Which statement is true about hcl? (5 points) select one: a. it is a salt because it increases the concentration of metallic ions. b. it is a salt because it is formed by the reaction of an acid and a base. c. it is an acid because it increases the concentration of hydroxyl ions. d. it is an acid because it increases the concentration of hydronium ions.

Ajet plane is speeding down the runway during takeoff. air resistance is not negligible. identify the forces on the jet.