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CBB chapter 1
Question | Answer |
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Anything that has mass and occupies space | Matter |
The study of properties of matter and how matter changes | Chemistry |
A single kind of matte that is pure and has a specific set of properties | Substance |
A characteristic of a pure substance that can be observed without changing it into another substance | Physical property |
A characteristic of a pure substance that describes its ability to change into a different substance | Chemical property |
A pure substance that cannot be broken down into other substances by physical or chemical means | Element |
The basic particle from which all elements are made | Atom |
The force that holds two atoms together | Chemical bond |
A particle made up of two or more atoms bonded together | Molecule |
A pure substance made of two or more elements chemically combined | Compound |
A formula that gives the elements in a compound that gives the ratio of atoms | Chemical formula |
Two or more substances that are mixed together but are not chemically combined | Mixture |
A mixture in which pure substances are unevenly distributed throughout the mixture | Heterogeneous mixture |
A mixture in which pure substances are evenly distributed throughout the mixture | Homogeneous mixture |
An example of a homogeneous mixture; forms when substances are dissolved | Solution |
The measure of the force of gravity on an object | Weight |
A measure of how much matter is in an object | Mass |
The system of units used by scientists to measure the properties of matter | International System of Units |
The amount of space that matter occupies | Volume |
The measurement of how much mass of a substance is contained in a given volume | Density |
A change in a substance that does not change its identity | Physical change |
A change in which one or more substances combine or break apart to form new substances | Chemical change |
The principle that the total amount of matter is neither created nor destroyed | Law of conservation of mass |
The ability to do work or cause change | Energy |
A measure of the average energy of motion of the particles of a substance | Temperature |
The total energy of all the particles of an object | Thermal energy |
A change in which energy is taken in | Endothermic change |
A change in which energy is given off | Exothermic change |