Science Classroom Connection

Students are to reinforce our class discussion on phase changes by answering question #’s 28, 30, 31, and 32 on page 430.

We will discuss and elaborate upon how matter changes when energy is added or removed and analyze its aspects through a phase diagram for water at different temperatures and pressures.

Students were expected to read Section 12.1 on gases and answer the study guide that was assigned on the subject matter on Monday and due on Wednesday. Regrettably, since many of them failed to simply read and write last night, Tuesday, the assignment has been reassigned for tomorrow, and it will be picked up for a formative assessment on Thursday.

We will briefly review our test on limiting reactant and percent yield, and then elaborate upon how matter behaves in terms of a particle’s size, motion, and energy. We will also distinguish between compression and expansion of a gas in a closed container, and realize the distinction between the diffusion of a gas that differs from its effusion process. Moreover, we will define what pressure is and examine how it is measured at different elevations.

Students will be evaluated upon the limiting reactant and percentage yield since in certain situations, one will not be able to determine the percent yield without finding out the limiting reactant that will also play a role in determining the theoretical yield. I recommend that students redo any or all of the homework problems that we have already done as a reinforcement since they have the answers to these problems.