Câu 26 (B.08): Cho dãy các chất: K2SO4.Al2(SO4)3.24H2O, C2H5OH, C12H22O11 (saccarozơ), CH3COOH, Ca(OH)2, CH3COONH4. Số chất điện li là A. 3. B. 4. C. 5. D. 2.

You 4. you have been swimming in your neighbor’s pool for an hour. the relative humidity of the air is 30 percent. will you feel warm or cool when you step out of the pool? explain your answer.

Sulfuric acid is a polyprotic acid. write balanced chemical equations for the sequence of reactions that sulfuric acid can undergo when it's dissolved in water.

What is the solubility-product constant of barium sulfate, baso4, if a saturated solution is 1.03 ´ 10-5 m?