Explain the effect of inertia on objects at rest and objects in motion.

"Inertia will make the object at rest if its already at rest or will maintain the velocity if in motion." is the effect on the object at rest or at motion.

Explanation:

Inertia is the tendency that all object posses which can also resist the change of motion. With the help of inertia any moving object can stay in motion possessing the same with same velocity unless any external force will act on it to change its speed or the direction. Which also main the state of rest if the object is already in rest. When the mass of the object is more, it requires greater inertia and also more force to change the state of motion.

  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-