If you start with a sample of solid sodium hydroxide (NaOH), weighing 9.4 grams, what volume in mL of a 0.250 M HCl solution will neutralize this solution

Kc = 0.040 for the system below at 450oc. if a reaction is initiated with 0.40 mole of cl2 and 0.40 mole of pcl3 in a 2.0 liter container, what is the equilibrium concentration of cl2 in the same system? pcl5(g) ⇄ pcl3(g) + cl2(g)

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

What does the symbol (–hfus) indicate in a phase change?