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Word … and chemical equations
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Learning goals We are learning to write word equations for chemical reactions. We are learning to write chemical equations for chemical reactions.
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Word equations Summary of a chemical reaction using compound names
General form: reactant(s) product(s) Reactant #1 + Reactant #2 Product #1 + Product #2 The “” is read as “produces”, “forms” or “yields” calcium + chlorine calcium chloride
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Silver Nitride + Copper Silver + Copper Nitride
Hydrogen + Oxygen Water vapour Reactants Products Reactants Products
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chemical equations summary of reaction using chemical formula
Ca + Cl2 CaCl2
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H2 O2 F2 Br2 I2 N2 Cl2 Diatomic molecules
any molecule that is bonded with the 2 of the same atom diatomic 7 H2 O2 F2 Br2 I2 N2 Cl2
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Example #1 Write the word and skeleton equations for the following chemical reactions. Aluminum metal resists corrosion since it reacts with oxygen in the air to form a coating of protective aluminum oxide.
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Example #2 Magnesium metal reacts with sulfur to produce magnesium sulfide. Energy is released when this occurs.
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Whiteboard Examples lithium reacts with calcium chloride to produce calcium and lithium chloride. gold reacts with oxygen gas to make gold oxide. sodium and chlorine gas react to make sodium chloride.
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Learning goals We are learning to write word equations for chemical reactions. We are learning to write chemical equations for chemical reactions.
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