3. Scientists are measuring 2 separate depths of the ocean using sonar. Point A takes 4 seconds to return to the ship. Point B takes 8 seconds to return. Knowing those two numbers, what could the scientists determine about the depth of the ocean in those two points? How do you know ?

What is the indicator of the number of ions in solution? the amount of conductivity the amount of precipitate the amount of solute added

Which polymers are most closely related? a. protein and nucleic acids b. cellulose and starch c. nucleic acids and starch d. nucleic acids and cellulose

Using this reversible reaction, answer the questions below: n2o4 2no2 (colorless) (reddish-brown) -as the temperature increased, what happened to the n2o4 concentration? -was the formation of reactants or products favored by the addition of heat? -which reaction is exothermic? right to left or left to right? -if the change of enthalpy of this reaction when proceeding left to right is 14 kcal, which chemical equation is correct? n2o4 2no2 + 14 kcal n2o4 2no2, hr = +14 kcal n2o4 + 14 kcal 2no2 n2o4 2no2, hr = -14 kcal