Question 14 (5 points)
(07.06 MC)
A student made a graph plotting the progress of a reaction over time. The student
forgot to label the y-axis of the graph.
Equilibrium
Position
Time
What best explains the label that the student should use on the y-axis? (5 points)

Maria wants to determine which type of disinfectant kills the most bacteria. which of the following is the best way for maria to determine this? a. ask ten different companies that make disinfectants which type is best. b. put the same amount and species of bacteria on ten identical plates, and add ten different kinds of disinfectant to each plate. c. interview ten different people to determine which type of disinfectant they prefer. d. put the same amount and species of bacteria on ten identical plates, and add a different disinfectant to each plate.

Which of the following is always a reactant in a combustion reaction? oxygen nitrogen hydrogen carbon

Use the drop-down menus to label each of the following changes p for physical change and c for chemical change. the substance changes to a new substance. the original substance can be recovered. the color changes. gas is produced and given off. the substance changes size, shape, or volume.