Directions: Solve the following problem. (5 points each) 1. What is the mass percent of sodium chloride in a solution that is made by dissolving 2.35 g of NaCl in 7,45 g of water.

Schrodinger and heisenberg developed an alternate theory about atomic nature that contradicted some of bohr's model of the atom. how do changes resulting from new technology and evidence affect the reputation of the atomic theory?

Kc = 0.040 for the system below at 450oc. if a reaction is initiated with 0.40 mole of cl2 and 0.40 mole of pcl3 in a 2.0 liter container, what is the equilibrium concentration of cl2 in the same system? pcl5(g) ⇄ pcl3(g) + cl2(g)

Summarize possible ways in which phases of matter could combine to form a solution.