Based on the definition of logarithms, what is the difference in hydrogen ion concentration between a substance with a pH of 2
and a substance with a pH of 3?
O A substance with a pH of 2 has a 10 times higher concentration of H* than a substance with a pH of 3.
O A substance with a pH of 3 has a 10 times higher concentration of H* than a substance with a pH of 2
O A substance with a pH of 2 has a 100 times higher concentration of H* ions than a substance with a pH of 3
O A substance with a pH of 3 has a 100 times higher concentration of Hions than a substance with a pH of 2

For the following dehydrohalogenation (e2) reaction, draw the zaitsev product(s) resulting from elimination involving c3–c4 (i.e., the carbon atoms depicted with stereobonds). show the product stereochemistry clearly. if there is more than one organic product, both products may be drawn in the same box. ignore elimination involving c3 or c4 and any carbon atom other than c4 or c3.

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

How are isotopes of the same chemical element alike? how are they different?