Chemistry Comes Alive

Chemistry Comes Alive - Chemistry Comes Alive Matter and...

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Chemistry Comes Alive
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Matter and Energy Matter States Energy- capacity to do work or put an object in motion Potential Kinetic Forms of energy
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Composition Elements Atoms- smallest unit of an element Nucleus Neutrons Protons Electrons Atomic number - number of protons inside the nucleus Mass number- mass of atom- protons and neutrons together Isotopes – additional number of neutrons that are not a part of the normal mass number Atomic weight- averaging
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Ions Atom with a positive or negative charge Unequal number of protons and electrons Types Anions- Negatively Charged Cations- Positively Charged
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Electrolytes Salts that ionize in water, form solutions that conduct electricity Examples: Chemical reactivity – calcium phosphate Osmotic effect – sodium and chlorine Electrical effect – sodium and potassium
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Free radicals Chemical particles with an odd number of electrons – Example:
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Chemistry Comes Alive - Chemistry Comes Alive Matter and...

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