A solution is prepared by adding 0.0137 mol of solid NaCl and 0.00500 mol of solid CaCl2 to 50.0 mL of water. What is the molar concentration (molarity) of Cl- ions in the resulting solution?

How many moles are in 250 grams of tungsten (w)? * 4.4x10^23 moles 4.2x10^23 moles 0.7 moles 1.4 moles

Compare and contrast physical changes with chemical changes.

This flow chart shows the amount of energy that is emitted by each type of light. ultraviolet > blue light > yellow light > red light (maximum energy) (minimum energy) in an experiment, shining which type of light on a strip of metal would be least likely to produce the photoelectric effect? ultraviolet light dim blue light bright red light bright yellow light