2. Which of these energy transfers occurs in a solar panel? (p.116)
A. Mechanical energy is transferred to the
panel when waves from the sun push
against the panel and move it.
B. Electromagnetic energy is transferred to the
panel when light waves from the sun are
absorbed by the panel.
C. Thermal energy is transferred to the panel
when it is connected with an electrical
source in a complete circuit.
D. Electrical energy is transferred to the panel
when it is connected with an electrical
source in a complete circuit.

Identify the lewis base in this balanced equation: fe3+ h2o fe(h2o)63+

Use the measurements in the table to determine which unidentified metal has the highest density. metal volume mass a 10.5 cm3 122 g b 14.2 cm3 132 g c 16.1 cm3 115 g d 12.7 cm3 126 g

You are attempting to recrystallize a crude product mixture. you add the appropriate amount of hot solvent and are allowing the solution to slowly cool to room temperature. however, at room temperature no crystals have appeared, which of the following methods should be used to induce crystallization? choose all correct answers. a) place the flask in an ice bath. b) swirl the contents of the flask. c) add a small seed crystal of the desired product. d) scratch the inside of the glassware using a stir rod. it can be multiple choices