in the how much water is in the hydrate investigation, a 2.436 gram sample of a Be(NO3)2 hydrate was placed into a crucible. After two cycles of heating, the mass of the anhydrous salt was found to be consistent at 1.587 grams what is the empirical formula of the hydrated compound

8. what happens to matter during a chemical reaction

Isopropyl alcohol, (ch3)2choh, is a common solvent. determine the percent by mass of hydrogen in isopropyl alcohol. a) 6.71% h b) 13.4% h c) 25.0% h d) 53.3% h

Covalent bonds generally form when the bonded elements have a difference in electronegativity less than 1.5. subtract the electronegativities for the following pairs of elements and predict whether they form a covalent bond. electronegativity difference of c and c: ionic covalent electronegativity difference of mg and cl: ionic covalent