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Chemical EquationsFH
Chemical Equations
| Question | Answer |
|---|---|
| chemical formulas give the ______________ of the elements in a compound | proportions |
| shows the arrangement of atoms in space | structural formulas |
| lin structural formulas, lines represent ____________ ___________ where a pair of electrons are being shared | covalent bonds |
| the number in front of a chemical formula which designates the number of molecules of that compound | coefficient |
| 2H₂O means you have _______ molecules of water | two |
| when writing chemical equations the part of the left side represents _________ while the right side represents _______________ | reactants, products |
| CO₂ + H₂0 --> C₆H₁₂O₆ + O₂ + H₂0 represents a balanced/unbalanced equation | unbalanced |
| have the same number of each type of atom on each side | balanced equations |
| balanced equations adhere to the law of _____________________ | conservation of Mass |
| The Law of Conservation of Mass states: | in chemical reactions can neither be created or destroyed, only rearranged to form new compounds |
| 6CO₂ + 12H₂O --> C₆H₁₂O₆ + 6O₂ + 6H₂O represents a balanced/unbalanced | balanced |
| what are the 3 rules for balancing equations? | never change subscripts, do NOT add reactants or products, only add coefficients |
| <sub>2</sub> | 2 |