A 200-Hz sound has a wavelength about equal to the height of an adult. Would a sound with a wavelength equal to the height of a two-year-old child have a higher or lower frequency than 200 Hz?

Provide a stepwise curved arrow mechanism that fully explains the outcome of the reaction shown below. oh нао* heat он

Astudent reacts 13 moles of iron with 21 moles of oxygen according to the following equation:

Click the button that shows the correct relationship of the electron affinities of the elements sodium and phosphorus. sodium’s electron affinity value is more negative than the electron affinity value of phosphorus. phosphorus’ electron affinity value is more negative than the electron affinity value of sodium. this information cannot be determined using the periodic table. answer is b on e2020.