Mary pulls a 236 gram cup (c = 0.84 J/g°C) out of the cabinet that was sitting at room temperature of 22°C. She pours a can of Sprite she got out of the refrigerator (5°C) and
pours it into the cup. If the final temperature of the two combined was 9°C, what was
the mass of Sprite that she poured into the cup? The specific heat of the Sprite is 3.8
J/gºC.

THE NUMBERS MASON WHAT DO THEY MEAN

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-