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13,14,15
Quiz Over Chapters 13,14,15
| Question | Answer |
|---|---|
| an interaction that holds atoms or ions together | chemical bond |
| a compound made of oppositely charged ions | ionic compound |
| a chemical compound that is formed by the sharing of electrons | covalent compound |
| any compound that increases the number of hydronium ions when dissolved in water | acid |
| a compound that can reversibly change color depending on conditions such as pH | indicator |
| any compound that increases the number of hydroxide ions when dissolved in water | base |
| the reaction of an acid and a base to form a neutral solution of water and a salt | neutralization reaction |
| a value that is used to express the acidity or basicity (alkalinity) of a system | pH |
| an ionic compound that forms when a metal atom replaces the hydrogen of an acid | salt |
| a covalently bonded compound that contains carbon | organic compound |
| an organic compound composed only of carbon and hydrogen | hydrocarbon |
| a class of energy-giving nutrients that includes sugars, starches, and fiber; contains carbon, hydrogen, and oxygen | carbohydrate |
| a fat molecule or a molecule that has similar properties; examples include oils, waxes, and steroids | lipid |
| a molecule that is made up of amino acids and that is needed to build and repair body structures and to regulate processes in the body | protein |
| a molecule made up of subunits called nucleotides | nucleic acid |
| the combining of atoms to form molecules or ionic compounds | chemical bonding |
| an interaction that holds atoms or ions together | chemical bond |
| an electron that is found in the outermost shell of an atom and that determines the atom's chemical properties | valence electron |
| the attractive force between oppositely charged ions, which form when electrons are transferred from one atom to another | ionic bond |
| a charged particle that forms when an atom or group of atoms gains or loses one or more electrons | ion |
| the regular pattern in which a crystal is arranged | crystal lattice |
| a bond formed when atoms share one or more pairs of electrons | covalent bond |
| a group of atoms that are held together by chemical forces; a molecule is the smallest unit of matter that can exist by itself and retain all of a substance's chemical properties | molecule |
| a bond formed by the attraction between positively charged metal ions and the electrons around them | metallic bond |
| the process by which one or more substances change to produce one or more different substances | chemical reaction |
| a solid that is produced as a result of a chemical reaction in solution | precipitate |
| a combination of chemical symbols and numbers to represent a substance | chemical formula |
| a representation of a chemical reaction that uses symbols to show the relationship between the reactants and the products | chemical equation |
| a substance or molecule that participates in a chemical reaction | reactant |
| a substance that forms in a chemical reaction | product |
| the law that states that mass cannot be created or destroyed in ordinary chemical and physical changes | law of conservation of mass |
| a reaction in which two or more substances combine to form a new compound | synthesis reaction |
| a reaction in which a single compound breaks down to form two or more simpler substances | decomposition reaction |
| a reaction in which one element takes the place of another element in a compound | single- displacement reaction |
| a reaction in which a gas, a solid precipitate, or a molecular compound forms from the exchange of ions between two compounds | double- displacement reaction |
| a chemical reaction in which energy is released to the surroundings as heat | exothermic reaction |
| a chemical reaction that requires energy input | endothermic reaction |
| the law that states that energy cannot be created or destroyed but can be changed from one form to another | law of conservation of energy |