What is a possible pH of acid rain?

7.0

6.9

4.3

10.5

You run an experiment to test the effects of temperature on solubility. What would you heat? A.) solvent B.) solute C.) the room B.) the beaker

Why do different chemicals emit different colors of light, and why is the color emitted specific to that chemical?

Plants contain xylem and phloem tissue. What organ system in animals performs a similar function as those in plants?

If an experiment produces 5g but should have made 500 g what is the percent yield

The question is "How does the absorption and release of energy affect temperature change during a chemical reaction?" I need to create a hypothesis. What is a good example of one?

You are given a substance that is equally soluble in water and hexane, what is the kd

How might you explain the difference between the pH values of the 0.01 M HCl (pH = 1.1) and the 0.01 M HC2H3O2 (pH = 3.6) ?

Copper has a density of 8.96 g/cm3. what is the volume of a copper block that has a mass of 45.0 g? hint: you have to rearrange the density equation to solve for volume. 0.199 cm3 5.02 cm3 5.02 g/cm3 403 cm3

For the following reaction, KP = 0.455 at 945°C: At equilibrium, is 1.78 atm. What is the equilibrium partial pressure of CH4 in atm?

The heat of fusion for water is the amount of energy needed for water to a. freeze. b. boil. c. melt. d. evaporate.