Calculate the wavelength of a body of mass 96.0 mg and moving with a velocity of 30.0 m/s. the value of planck's constant is 6.626 ×10^-34 j•s

Explanation:

The relation between the speed and the de Broglie wavelength λ of a particle is  

Data:

 h = 6.626 × 10⁻³⁴ J·s

m = 96.0 mg

v = 30.0 m/s

Calculations:

(a) Convert milligrams to kilograms

(b) Calculate the wavelength

  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-