Calculate the amount of heat (in kJ) released when 18.5 g or calcium hydroxide is formed. The molar mass of calcium hydroxide is 74.09g

CaO(s) + H2O(I) —> Ca(OH)2(s) + 65.2 kJ

A. 16.3 kJ
B 260.8 kJ
C 130.4 kJ
D 4.18 kJ

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.

|using the periodic tablewarm-upuse the periodic table in the tools bar to answer the following questions.what elemental classification does oxygen belongto? done

The missing component to the table to the right or indicated with orange letters complete the table by filling in the corresponding numbers or symbols