Configuración eléctrica de z=4​

This image is an example of a(n) a) atom. b) compound. c) mixture. d) molecule.

Sodium sulfate dissolves as follows: na2so4(s) → 2na+(aq) + so42- (aq). how many moles of na2so4 are required to make 1.0 l of solution in which the na concentration is 0.10 m?

Which are forms of frozen water? check all that apply. dew frost hail rain sleet