In 2008, Americans talked, viewed, and listened to media, excluding the workplace, for 1.3 trillion hours, an average of 11 hours per person per day. By 2012, total consumption had increased to 1.46 trillion hours, or an average 13.6 hours per person per day, representing a year over year growth rate of 5 percent.
A description of how to write the name for CaCl2 (Calcium chloride). First we determine whether CaCl2 is an ionic or molecular (covalent) compound using the periodic table. From the periodic table Ca is a metal and Cl is a nonmetal.Therefore CaCl2 is an ionic compound since it consists of a metal and nonmetal.Since CaCl2 is an ionic compound we name CaCl2 using the name for the metal (Ca) directly from the periodic table and then changing the element name Chlorine to Chloride.Therefor the name for CaCl2 is Calcium Chloride.ince CaCl2 is an ionic compound we name CaCl2 using the name for the metal (Ca) directly from the periodic table and then changing the element name Chlorine to Chloride. Therefor the name for CaCl2 is Calcium Chloride.
All you have to remember most importantly, is that Ionic is metal + non-metal For examples, in KCl, Potassium is an alkali metal and Chloride is a hallide (non-metal) In SiCl4, Silicon and Chlorine are both non-metals so form a covalent bond (and atoms that form this bond are termed molecules).ut there are also complex ions such as NH4+ and SO42- which form ionic bonds despite containing non metals. So best way is to remember the valency or charge of each simple or complex ion. A compound consisting of a cation(+ ve charge) and an anion(-ve charge) will be instantly recognized as ionic. Bittu Â· 3 years ago.