The bending of light as it moves from one medium to another with differing indices of refraction is due to a change in what property of the light?

Speed

Explanation:

The process whereby light bends as it moves from one medium to another (given that the two media have different indices of refraction) is called Refraction.

This process occurs due to the change in the speed of light as it changes media.

This change in speed is accompanied with a change in the wavelength of the light but the frequency remains constant.

The angle of refraction depends on the change in the speed of light and the angle of incidence of the object.

  the grams     of oxygen gas   that can be produced     is 20.6   grams of o₂

calculation

2liclo₃ →   2 licl + 3 o₂

step 1:   find the moles of liclo₃

moles = mass÷ molar mass

from periodic table the molar mass of liclo₃ =6.9 +35.5   +(16 x3) =90.4 g/mol

moles=38.7 g÷90.4 g/mol=0.4281   moles

step 2:   use the   mole ratio   to calculate the moles of o2

from equation above, liclo₃: o₂   is 2: 3  

therefore the moles of   o₂=0.4281 moles x3/2 =0.6422   moles

step 3: find mass   of o₂

mass= moles x molar mass

from periodic table the   molar mass of   o₂ = 16 x2= 32 g/mol

mass=0.6422   moles   x   32 g/mol = 20.6 grams of o₂