5.25.00 mL of 0.0250 M solution of CuSO4 was placed in 100 mL volumetric flask, diluted to the mark line and mixed. Then 5.00 mL of this solution was picked up and placed in 250 mL volumetric flask. Show how you calculate (show numbers) the final concentration of the solution.

What would happen to a volleyball left outside in the winter? o o o o a. it would expand. b. it would lose air. c. it would shrink. d. it would explode.

Select the correct value for the indicated bond angle in each of the compounds. o−o−oo−o−o angle of o3 90° 109.5° < 109.5° 120° < 120° 180° f−b−ff−b−f angle of bf3 180° < 109.5° < 120° 120° 109.5° 90° f−o−ff−o−f angle of of2 < 120° 120° 90° 109.5° 180° < 109.5° cl−be−clcl−be−cl angle of becl2 90° 109.5° 180° 120° < 109.5° < 120° f−p−ff−p−f angle of pf3 90° 109.5° < 109.5° 180° 120° < 120° h−c−hh−c−h angle of ch4 90° < 109.5° 180° 120° < 120° 109.5°

Show how to convert the temperature 84.7° c to kelvin. include all steps and label the final answer