An article reported the ages of 121212 CEOs: A dot plot has a horizontal axis labeled, Age, in years, marked from 25 to 55, in increments of 1. Dots are plotted above values as follows: 26, 1; 27, 1; 43, 1; 45, 2; 47, 1; 50, 1; 52, 1; 53, 1; 54, 1; 55, 2. A dashed vertical line through the axis at 46 is labeled, A. A dashed vertical line through the axis at approximately 48.5 is labeled, B. A dashed vertical line through the axis at 50 is labeled, C. The approximate location of the median is point The approximate location of the mean is point

There is a single path for electrons. the current decreases when additional resistors are added. the current will be the same in each resistor. these statements best describe a(n) circuit.

Astudent made a graph plotting the progress of a reaction over time. the student forgot to label the y-axis of the graph. a graph is shown with two graph lines. one graph line starts at a higher position on the y axis and slopes downwards towards the right. the other graph line starts at a lower position on the y axis and slopes upwards towards the right. the two graph lines stop short of intersecting each other and continue as separate lines which gradually become straight and parallel to the x axis. a vertical line is shown at a point where the two graph lines finally became parallel to the x axis. this vertical line is labeled equilibrium. the title on the x axis is time and an arrow pointing towards the right is shown above time. the title on the y axis is left blank. what best explains the label that the student should use on the y-axis? amount, because as the amount of product decreases, the amount of reactant increases over time. reaction rate, because forward and backward reaction become equal at equilibrium. amount, because the amounts of reactants and products become constant after equilibrium is reached. reaction rate, as the rate of forward reaction increases and rate of backward reaction decreases over time.

Which statement is usually true about the relationship between activation energy and reaction rates? low activation energy barriers result in low rates. high activation energy barriers result in low rates. low activation energy barriers result in no reaction. high activation energy barriers result in no reaction.