7. Justin B. believes that the temperature lowe
causes the color of the leaves to change. He set up an er
ne temperature lowering during the fall months is what
aves to change. He set up an experiment wherein he
placed some plants in 80 degrees rooms and some in 60 deg
es rooms and some in 60 degree rooms. He then
observed the color of the leaves for a total of 1 month. At The
For a total of 1 month. At the end of the month
Justin observed that of the plants in the 60 degree temperature had b
change colors and only 1 of the plants in the 80 degree temperature began to
change color
Independent Variable:
Dependent Variable:

The following reaction shows the products when sulfuric acid and aluminum hydroxide react. al(oh)3 + h2so4 → al2(so4)3 + h2o the table shows the calculated amounts of reactants and products when the reaction was conducted in a laboratory. initial mass and yield sulfuric acid aluminum hydroxide initial amount of reactant 40 g 15 g theoretical yield of water from reactant 14.69 g 10.38 g what is the approximate amount of the leftover reactant? 11.73 g of sulfuric acid 10.33 g of sulfuric acid 11.12 g of aluminum hydroxide 13.67 g of aluminum hydroxide

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

Which of these expressions are correct variations of the combined gas law? p1v1t2 = p2v2t1 both