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33 Cards in this Set
- Front
- Back
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Matter |
Anything that has mass and takes up space. |
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WHMIS |
1. Provides information on hazardous materials. 2. Identifies hazards in a work space. 3. Ensures that information is up to date. |
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Pure Substance |
A material that is composed of only one type of particle. |
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Particle Theory |
1. All matter is made up of particles. 2. Particles are always in motion. 3. All particles are attracted to each other. 4. When heated, particles move faster. 5. Each pure substance has its own type of particle. |
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Mixture |
A substance composed of two or more pure substances |
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Element |
A pure substance that can't be broken down into simpler parts by ordinary chemical means. |
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Compound |
A pure substance made up of two or more elements that are chemically combined. |
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Homogeneous |
A substance that has uniform composition throughout. |
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Heterogeneous |
Mixtures that has components that are not evenly distributed. |
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Soloution |
A mixture composed of two or more substances by dissolving. |
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Colloid |
A mixture which small particles of two or more substances are evenly distributed. |
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Suspension |
A mixture composed of small particles of a liquid or gas which left alone will separate out. |
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Ordinary Mechanical Mixture |
A mixture made of two or more substances that aren't uniformly distributed. |
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Alloy |
A mixture composed of two elements, one being a metal. |
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Physical Properties |
Properties can be observed without changing the composition of the substance/matter. |
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Chemical Properties |
Properties that can be observed while changing the composition of the substance/matter. |
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Qualitative |
Observations dealt by senses that aren't measured. |
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Quantitative |
Observations dealt by quality and are measured. |
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Viscosity |
Resistance of flow. |
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Melting Point |
A temperature at which a substance will melt. |
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Boiling Point |
A temperature at which a substance will boil and turn into vapor. |
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Solubility |
A substance's ability to dissolve. |
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Conductivity |
A substance's ability to conduct electricity. |
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Combustibility |
A substance's ability to burn in air. |
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Atom |
Tiny indestructible particles that are the most basic unit of a chemical element. |
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Atomic Theory |
An atom is composed of a nucleus containing protons (positive charge) and neutrons (neutral). Outside of the nucleus are shells containing electrons (negative charge). |
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Electron |
A subatomic particle with a negative charge. |
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Subatomic Particle |
A particle smaller than an atom. |
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Nucleus |
The origin of an atom containing protons and neutrons. |
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Metalloid |
An element with properties of both metals and non-metals. |
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Valence Shell |
The outermost shell in an atom. |
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Valence Electrons |
The electrons in the outermost shell of an atom. |
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Ion |
An atom with a positive or negative charge due to either losing or gaining an electron. |
