Determine which law is appropriate for solving the following problem. what volume will 1.56 liters of a gas at 27°c and 745 mmhg of pressure occupy at 100°c and 700 mmhg of pressure? law used:

We use the general gas law or the combined gas law to solve this kind of problem

Explanation:

The general gas law is a combination of both Boyle's law and Charle's law. It is expressed as:

                      =  

The unkown is V₂ which can be derived by substituting in the equation above.

The general gas law assumes that, n, the number of mole is 1

since the atomic number is the number of protons in the nucleus, as we move to the left on the periodic table, the electrostatic pull between the nucleus and the valence electron shell decreases. as we move down a group (vertical column), the valence shell energy level gets further and further from the nucleus.

  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-