Two dry solids --- barium hydroxide and ammonium nitrate --- are mixed to produce an endothermic reaction. The temperature of the mixture drops approximately 45oC and is cold enough to freeze the ...

What will happen to the pH of water if barium oxide is added? Using the databook we find that barium oxide is a metal oxide. Checking its solubility on page 8 of the databook we see that it will ...

Sulfuric acid, H 2 SO 4 (aq), contains sulfate ions. These would react with barium ions in the test, giving an incorrect positive result. Explain why, in a test for halide ions, the sample is ...