Why does baking soda increase the reaction time for bath bombs

Which statement describes james chadwick’s discovery.

Describe the forces both attractive and repulsive that occur as two atoms move closer together.

6) (a) calculate the absorbance of the solution if its concentration is 0.0278 m and its molar extinction coefficient is 35.9 l/(mol cm). the depth of the cell is 5 mm. (b) what is the %t? (7) calculate the absorbance of the solution if the transmitted light intensity is 70% of the initial light beam intensity