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Learning the elements and compounds

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
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Question
Answer
Conservation of mass   The law of the conservation of mass, or the principle of mass conservation, states that any system closed to all transfers of matter and energy.  
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Compound   A thing that is composed of two or more seperate elements; a mixture.  
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Molecule   a group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction.  
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Covalent Compound   A covalent bond is a chemical bond that involves the sharing of electron pairs between atoms. The stable balance of attractive and repulsive forces between atoms when they share electrons is known as covalent bonding. ...  
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Ionic Compound   In chemistry, an ionic compound is a chemical compound in which ions are held together in a lattice structure by ionic bonds.  
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Lewis dot structure   Are diagrams that show the bonding between atoms of a molecule and the lone pairs of electrons that may exist in the molecule.  
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Substance   A substance is matter that has the same fixed composition and properties.  
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Precipitate   When some solutions are mixed, a chemical reaction occurs forming a solid.  
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Solvent   The substance that dissolves the solute is the solvent.  
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Solution   Another name for a homogeneous is a solution.  
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Homogeneous Mixture   Contains two or more substances that are evenly mixed on a molecular level but are still not bonded together \.  
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Heterogeneous Mixture   In chemistry, a mixture is a material system made up of two or more different substances which are mixed but are not combined chemically.  
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Solute   In science, a solute is the substance that is dissolved to form a solution.  
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Vaporization   When a liquid changes into a gas.  
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Condensation   When a gas changes into a liquid.  
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Sublimation   A solid changes directly into a gas  
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deposition   When a gas changes into a solid.  
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Physical Change   Any property used to characterize matter and energy in their interactions.  
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Chemical Change   A property used to characterize materials in reactions that change their identity.  
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Created by: rvega
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