At the site of gas exchange in the lungs, where does the oxygen move?

O2 moves from the alveoli to the white blood cells.
O2 moves from the white blood cells to the alveoli.
O2 moves from the alveoli to the red blood cells.
O2 moves from the red blood cells to the alveoli.

Acrystal that absorvd water from air is (blank)a. aqueousb. homogenousc. hygroscopicd. efflorescent

An atom of lithium-7 has an equal number of(1) electrons and neutrons(2) electrons and protons(3) positrons and neutrons(4) positrons and protons

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.