Calcula cuántos gramos de Fe(OH)3 son necesarios para preparar 500 mL de una disolución con una concentración de 1.3 N.

Ahydrogen atom has 1 electron. how many bonds can hydrogen form? a) 1 b) 2 c) 3 d) 4 e) 5

Ineed ! i have no clue how to do this problem.

How long could you survive without electricity? what parts of your life would be affected by loss of electricity? should you prepare for an electricity outage, and if so, how would you prepare? what backup system could your family or community install to generate limited amounts of electricity during an outage? how does this system create an electric force field and generate electric current?