5.8 L of gas at 760 mm Hg is expanded at constant temperature until the pressure is 430 mm Hg. what is the volume of the gas?

10.3L

Explanation:

The following were obtained from the question:

V1 = 5.8 L

P1 = 760mmHg

P2 = 430mmHg

V2=?

The new volume can be obtain as follows:

P1V1 = P2V2

5.8 x 760 = 430 x V2

Divide both side by 430

V2 = (5.8 x 760) /430

V2 = 10.3L

Therefore, the new volume is 10.3L

  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-

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