The value of ΔH° for the reaction below is -126 kJ. The amount of heat that is released by the reaction of 30.0 g of Na2O2 with water is kJ. 2Na2O2 (s) + 2H2O (l) → 4NaOH (s) + O2 (g) A -126 B 24.2 C 67.5 D 48.4 E 96.9

The diagram below shows a cell placed in a solution. a cell is shown placed inside a beaker. it is labeled cell. the solution inside the beaker is labeled 40% salt solution and the solution inside the cell is labeled 20% salt solution. only water is allowed to move in and out of the cell. what will most likely happen to the cell? it will expand as water moves out of it. it will shrink as water moves out of it. it will expand as water moves into it. it will shrink as water moves into it.

If 22.5 liters of oxygen reacted with excess of hydrogen, how many liters of water vapor could be produced?

Answer asap need by wednesday morning calculate the ph of 0.036m naoh best answer will be brainliest