For the reaction: A + 2 B > AB2 , a series of experiments is performed to determine the rate law. The initial concentrations of A and B, and the initial rates of reaction are shown below. From these data, determine the rate law. Expt. # Initial Conc. Rate

[A] [B] (M/s)

1 0.40 0.30 2.4 x 10-4

2 0.40 0.15 1.2 x 10-4

3 0.80 0.30 9.6 x 10-4

a. R = k [A]2
b. R= k [A] [B]
c. R= k [A]2 [B]2
d. R= k [A] [B]2
e. R = k [A]2 [B]

How do you know when a chemical reaction has occurred

Asample of tin (ii) chloride has a mass of 0.49 g. after heating, it has a mass of 0.41 g.  what is the percent by mass of water in the hydrate?   %

Movement that is like a t a type of wave that transfers energy where the particles in the medium move in a circle motion while the energy travels left or right. a type of wave that transfers energy where the particles in the medium move perpendicular to the direction in which the energy is traveling. transfers energy from one location to another a type of wave that transfers energy where the particles in the medium move parallel to the direction in which the energy is traveling. movement that is back and forth, like an equal sign = 1. wave 2. parallel movement 3. perpendicular movement 4. transverse wave 5. longitudinal wave 6. surface wave