Two masses (m1=80kg and m2=20 kg) lumped together are initially at rest. They suddenly split and  m2 moves to the right with a velocity of 3 m/s.  What is the velocity of m1? m/s (chose positive for right and negative for left)

This is a mass spectrum of Br2. Base on the data, how many isotopes of Br exist in nature? Picture8(2).png  

The weights of edges in a graph are shown in the table below.  Apply the nearest neighbor algorithm to the graph starting at vertex A.  Give your answer as a list of vertices, starting and ending at vertex A. A B C D E F A —— 58 57 1 28 16 B 58 —— 53 4 2 11 C 57 53 —— 48 38 6 D 1 4 48 —— 30 17 E 28 2 38 30 —— 5 F 16 11 6 17 5 —— _______

What is the degree of vertex F? _______

Which formula represents an unsaturated hydrocarbon?

Place the number of the definition that best matches the term in the space provided.   (1 mark each)

For the reaction Cl2(l) + 2Na(s) ↔  2NaCl(s), the rate of the forward reaction could be increased most by:

Given that Ksp for AgIO3 (silver iodate) is 4.0 x 10-8, the concentration of Ag+ in a saturated solution is:

Knowing that the concentration of silver ions, Ag+, in a solution of silver chromate, Ag2CrO4, is 1.5 x 10-4 M, calculate the solubility product of silver chromate.   (4 marks)

State the type of bond that forms between the following elements:   (1 mark each) a) N and O b) Ca and Br c) C and F