1- Robert puts a piece of waffle on a plate. The waffle is hot from the waffle maker. When he puts the waffle on the plate, the energy of the plate increases. What must be true of the energy of the waffle? a Its energy stays the same while the energy of the plate increases.
b Its energy decreases while the energy of the plate increases.
c Its energy increases while the energy of the plate increases.
d It is impossible to know without data on the number of molecules in each object.

Explain your answer using the correct science concepts.

What does the process of natural selection involve

Based on the equation and the information in the table, what is the enthalpy of the reaction?

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.