If 2.1 moles of cacl2 are dissolved in enough water to make a 0.92-liter solution, what is the resulting molarity? . answer . . . . a) 2.3 m cacl2. b) 0.44 m cacl2. c) 0.70 m cacl2. d) 3.0 m cacl2 .

In numbering carbon atoms in the parent chain of a hydrocarbon, why would you number from right to left, rather than left to right

One way in which the useful metal copper is produced is by dissolving the mineral azurite, which contains copper(ii) carbonate, in concentrated sulfuric acid. the sulfuric acid reacts with the copper(ii) carbonate to produce a blue solution of copper(ii) sulfate. scrap iron is then added to this solution, and pure copper metal precipitates out because of the following chemical reaction: (s) (aq) (s) (aq) suppose an industrial quality-control chemist analyzes a sample from a copper processing plant in the following way. he adds powdered iron to a copper(ii) sulfate sample from the plant until no more copper will precipitate. he then washes, dries, and weighs the precipitate, and finds that it has a mass of .

Type the correct answer in each box. use numerals instead of words. the distance between earth and the moon is about 384,400 kilometers. the distance can be written in scientific notation as a × 10b kilometers, where a = and b = .