One method of determining the concentration of hydrogen peroxide (H2O2) in a solution is through titration with the iodide ion. The net ionic equation for this reaction is
H2O2 + 21° +2H+ + 12 + 2H2O
A 28.70 mL sample of a hydrogen peroxide solution is found to react completely with 25.57 mL of a
0.1500 M Kl solution. What is the concentration of hydrogen peroxide in the sample?

Sulfuric acid (a component of acid rain) reacts with limestone (calcium carbonate) to produce calcium sulfate and carbon dioxide. this damages buildings and statues made of limestone. which solution of sulfuric acid will damage these structures more quickly? a. 0.001% b. 0.005% c. 0.010% d. 0.015%

Match the following vocabulary terms to their definitions. 1. amount of energy required to change 1 gram of material from the solid to the liquid state at its melting point 2. a measure of the kinetic energy of the particles of a substance 3. the amount of heat energy required to raise the temperature of 1 gram of liquid water from 14.5°c to 15.5°c 4. amount of energy required to change 1 gram of material from the liquid to the gaseous state at its boiling point 5. the amount of energy required to change 1 gram of a substance 1°c a. temperature b. latent heat of vaporization c. latent heat of fusion d. calorie e. specific heat

Light waves travel than sound waves.