What is the wavelength of the light emitted that has a frequency of 1.50x10to 13 the power hz

In this chemical reaction, 325 grams of barium (ba) react completely. how many moles of lithium (li) are produced?

Describe what happens to the molecules as water goes from ice to liquid to vapor. be sure to explain what happens to the temperature during the phase changes.

Ascientist conducted an experiment and discovered that certain plants grow faster when given a particular amount of fertilizer. anouther scientist conducted the same experiment and got similar results. which concept does this best illustrate? a) repetition b) replication c) precision d) validity