Masteringchemistry: Post-Lecture Homework Chapter o7 Google Chrome https:// sess
ID: 947841 • Letter: M
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Masteringchemistry: Post-Lecture Homework Chapter o7 Google Chrome https:// session. masteringchemistry.com assignment ProblemID 58201393 /myct/itemView? Chem 1210 Section 401 Post-Lect Homework Chapter Introduction to the Alkaline Earth Metals Part A Introduction to the Alkaline Earth Metals Predict the products of the following reaction MgCl2 Learning Goal: The equation may not be correctly balanced To be able to predict the products of some alkaline earth metal reactions Express your answer as a chemical formula. If no reaction occurs, enter noreaction. Th d g the period include beryllium, magnesium, calcium, strontium, barium, and radium. They all have thens Valence electronic configuration and are electropositive. Therefore, they They gh the p MgCl2 earth metals were first obtained by Sir Humphrey Davy, who obtained the pure forms of magnesium, calcium, strontium, and barium by electroly of the molten chloride here illustrated with CaCl2 Submit Up R CaC (l) Ca(s) C12 (g Alkaline earth metals have a number of unique properties he light Predict the product of the following reaction bond charge to size rati The equation may not be correctly balanced. 2. Al h halog halides with the general formula MX2 Express your answer as a chemical formula. If no reaction occurs, enter noreaction. Beryllium halides are good Lewis acids, reacting readily with electron 3. donors to form tetrahedral adducts such as the following BeCl2 2Me2 O BeC12 (OM )2 4. Almost all the alkaline earths react with oxygen to form the MO compound except barium, whose size mak he peel BaO. 5. Oxid btained b the carbonates Subm Up R MCO (s) MO CO2 (g e exception of BeO, all alkaline earth metal oxides are ba 6. Wi reacting with water to form hydroxide salts, dissolving in acid. Part C Based on their electronic properties, place the following metals in order of decreasing melting point Highest melting point Lowest melting point reset help J The correct ranking cannot be determined. Submit Up R Signed in as Amber Plante I Help Close previous l 18 of 20 I next 10:56 PMExplanation / Answer
MgCl2(l) + 2K(l) ===> Mg + 2KCl
3Ba + 2P ===> Ba3P2
melting point lowest to highest is Ba (650 °C) < Ba (727 °C) < Calcium (842 °C)