7. What is the F-B-F bond angle in BF3? (A)less than 109.5° (B)109.5° (C)120* (D)greater than 120

12. For a reaction that follows the general rate law, Rate = k[AJ[B]2, what will happen to the rate of reaction if the concentration of B is increased by a factor of 2.00? The rate will (A)decrease by a factor of 1/4.00. (B)decrease by a factor of 1/2.00. (C)increase by a factor of 2.00. (D)increase by a factor of 4.00.