7. A 100 ml sample of 0.100 M NaOH was reacted with 100 ml of 0.100 M HCl in a coffee-cup calorimeter with lid by the following reaction: HCl (aq) + NaOH (aq) → NaCl (aq) + H2O (aq) If the temperature of the water and the calorimeter (heat capacity of calorimeter = 200 J/oK) increases from 25.00 oC to 25.97oC, (1) what is the ΔH of the reaction? Using the definitions at the beginning of the module describe (2) the calorimeter + contents, (3) the type of process.

c most likely

hop this let me know if it is wrong

  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-

it is stable as it is in group 0 which have full outer shells of electrons