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Science Vocab44
science vocab
Question | Answer |
---|---|
Chemical Energy | The energy stored in chemical bonds |
Combustion Reaction | A chemical reaction in which a substance reacts rapidly with oxygen. |
Chemical Equation | A representation of a chemical reaction in which the reactants and productsare expressed as formulas |
Coeffients | Numbers that appear before a formula in a chemical equation to show the relative proportions of each reactant and product |
Decomposition Reaction | A chemical reaction in which a compound breaks down into two or more simpler substances |
Double Replacement Reaction | A chemical reaction in which two compounds exchange posative ions and form two new compounds |
Endothermic Reaction | A chemical reaction that absorbs energy from its surroundings |
Exothermic Reaction | A chemical reaction that releases energy to its surrondings |
Oxidation Redution | A chemical Reaction in which electrons are transford from one reactant to another |
Polyatomic Ion | A covalently bonded group of atoms that has a posative or negative and acts as a unit |
Products | New substances formed as a result of position or shape. |
Reactants | A substance that undergoes change in a chemical reaction |
Single Replacement | A chemical reaction in which one element takes the place of another element in a compound |
Synthesis Reaction | A chemical in which two or more substances react to form a single substance |