Calcule el volumen de reactivo concentrado requerido para preparar las disoluciones diluidas indicadas: a) H3PO4 15 M para preparar 750 mL de H3PO4 3.0 M
b) HNO3 16 M para preparar 250 mL de HNO3 0.50 M

The real answer is keeping the world healthy so we won’t die

The correct answer is "hydrogen".

Hello thereone of the following properties was originally used to arrange elements on the periodic table, but is no longer used to organize the modern version. which property fits this description? answer: atomic mass  was originally used to arrange elements on the periodic table, but is no longer used to organize the modern version.