a sample of hydrated chromium (lll) bromide (CrBr3) has a mass of 0.949g. After dehydration the sample has a mass of 0.692g. Which is the correct name for the hydrate?

Click the button that shows the correct relationship of the electron affinities of the elements sodium and phosphorus. sodium’s electron affinity value is more negative than the electron affinity value of phosphorus. phosphorus’ electron affinity value is more negative than the electron affinity value of sodium. this information cannot be determined using the periodic table. answer is b on e2020.

Consider the story you just read. all but one of the choices below indicate that something is living.

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