Warm up - Read the following article on the Mass of Matter. Just read the first page, the other pages are just copies. Look on the board for the questions to answer in your warm up folder. Last class we did a lab on the Law of Conservation of Mass. Our lab was suppose to show that matter cannot be created or destroyed. The mass of the reactants should have been been equal to the mass of the products. Our lab was not perfect and we discussed some reasons why our lab did not 100% prove the Law. Today, we used the Law of Conservation to help explain and balance equations. Balancing equations comes easy to some students, but can be challenging for other students. The best thing to do is just practice, practice practice. Here are the notes from today's powerpoint that go on page 32. Next we did some practice as groups balancing equations. Using cards of elements and compounds, students made full size models of balancing equations. Students created a google slides presentation of their balanced equations as well as completing a handout showing the balanced equations as well as the number of atoms in the products and reactants. For homework, students were given 8 equations to balance on page 33 in their notebooks. We will go over them in class tomorrow if you are still struggling. Almost done with chemistry guys! Just a few more days.
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