Which has the largest rate constant, K? A. Skin tanning in the sunshine
B. Dynamite exploding
C. Copper statues turning green
D. Chemical changes causing leaves to brown in the fall

How much energy is made when a pice of wood burns. how do you know

The content of manganese (mn) in steel was determined spectrophotometrically and with the use of the standard addition method. an unknown sample of mn from a digested steel sample gave an absorbance of 0.185 when analyzed spectrophotometrically. when 5.00 ml of solution containing 95.5 ppm mn was added to 50.0 ml of the unknown steel solution (digested sample), the absorbance was 0.248. calculate the concentration, in parts-per-million (ppm), of mn in the digested steel sample solution.

Salt in oceans comes from and of rocks