Given the thermochemical equation, H2 (8) + Br2 (1) ► 2HBr(g), AH = -72.4 kJ/mol, calculate the amount of heat released when a kilogram of
H2 (g) is consumed in this reaction.

If 1.8 l of water is added to 2.5l of a 7.0 molarity koh solution, what is the molarity of the new solution

What is bromine+calcium iodide--> calcium bromide +iodine balanced

An unknown substance is a white solid at room temperature and has a melting point of 78 °c. which of the following substances is most likely to be the identity of the unknown sample? a. naphthalene, a molecular solid with the formula c10h8 b. silica, a network solid held together by covalent bonds with the formula sio2 c. calcium chloride, an ionic compound with the formula cacl2 d. water, an molecular compound with the formula h2o