If an electron falling from an excited state releases 4.1 x 10-19 J of energy, what is the
frequency of the light emited? answer choices>
O 6.18 x 10 (14)
O 6.18 x 10 (-14)
O 2.72 x 10 (52)
0 2.72 x 10 (-52)

What are transitions between a liquid and a solid called? identify which way they are transitioning

For each of the following compounds, write the formula then predict whether it would be a strong, weak, or non-electrolyte when placed in di water. for the ionic compounds only, put (s) or (aq) after the forrmula formula strong, weak or non electrolyte? a calcium hydroxide b. silver carbonate c. lead(ii) sulfate d. phosphorus trifluoride e. sodium phosphide f barium sulfate g. strontium acetate h. zinc nitrate

The atoms of a solid aluminum can are close together, vibrating in a rigid structure. if the can is warmed up on a hot plate, what happens to the atoms?