Some people believe that if by placing a cold spoon in a cup of hot coffee, it will cool it enough to drink it comfortably. Let’s test this. If you have silver spoon that has been chilled at T= 10.0 oC (let’s say mass = 100.0 g, assume 100% Ag, specific heat =0.235 J/g oC), and you place it in a 240. mL cup of coffee that is at T= 90.0 oC (a typical temperature at a McDonald’s restaurant) . What will the final temperature of the coffee? [Food for thought, if you spill this coffee, will it be hot enough to give you 3rd degree burns? (based on an actual lawsuit)]

it should be all of them because it asks if you included all of those in your answer

explanation:

  the   balanced   equation   for   reaction of   ca metal   with   o2 to   produce   cao   is as below

2 ca+ o2→ 2 cao2

  explanation

the reaction is   balanced     since the   number of atoms   in reactant side is   equal to   number of atoms   in   product side.   for   example   they   are 2   atom of   ca in   reactant   side   and   2   atoms of ca   in   the product side.

  the   process   is a   meet the   requirement   of   redox   reaction because :     calcium   is   oxidized   from   oxidation state 0   to 2+   while   oxygen   is reduced from   oxidation   state   0   to 2-

my dad did alot of meth and ace cheeks