W ARM UP 12-19-14 Question: What type of reaction? MgO  Mg + O Answer: Decomposition. Goal: I will perform a synthesis reaction in an open system.

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Presentation transcript:

W ARM UP Question: What type of reaction? MgO  Mg + O Answer: Decomposition. Goal: I will perform a synthesis reaction in an open system.

ELEMENT OF THE DAY 48 – Cadmium – Cd Cadmium, like mercury and lead, can accumulate in the environment and the body, and hence can cause long term damage to all forms of life. Cadmium is most famous for use in nickel- cadmium (ni-cad) batteries, which you should recycle for the reasons mentioned above. These are being replaced by lithium ion and nickel metal hydride. Cadmium-plated fasteners are used on bolts on airplanes because they don’t rust or corrode. Cadmium sulfide makes a bright yellow pigment, but like many older paint pigments, it is toxic.

A GENDA - Bellwork - Review HW - Synthesis lab - Homework -Pg 35 -Traditions day Tuesday!

H OW MANY MOLECULES OF IRON OXIDE DID YOU END WITH ? -Iron Oxide is Fe Figure formula mass of Fe Formula Mass mass of sample of Fe (grams) (after reaction) = x x (molecules)