If an electron has a wave length of 1.230x10^-7 hectometers what is the energy in centijoules

Describe the difference between a. a hypothesis and a theory and b. an observation and an experiment.

The grooves or folds of the brain are called

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