Assuming that a car travels at 70 mph, how many miles must be driven before a fatal accident is expected? ' (use table 1-4 in the book for accident frequencies) how many miles if the car is driven at 30 mph?

What approach is required to balance the objectives of sustainable development? balancing the objectives of sustainable development requires a(n) .

Why is the bond angle in a water molecule less than the bond angle of methane? a. the central oxygen atom in water has two lone pairs of electrons, whereas the central carbon atom in methane has no lone pairs. b. the central hydrogen atom in water has one lone pair of electrons, whereas the central carbon atom in methane has two lone pairs. c. the central oxygen atom in water has four lone pairs of electrons, whereas the central carbon atom in methane has only one lone pair. d. the central oxygen atom exerts more repulsive force on surrounding atoms than the central carbon atom in methane does. reset next

12. calculate the hydroxide ion concentration of a solution with ph = 3.25. show all calculations leading to an answer