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Ch6 sec 1

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QuestionAnswer
What is element? Substance that can't be broken down into simplier chemical substances.
What is atom? Smallest particle of an element that has the characteristics of the that eleement;basic building block of all matter.
What is nucleus? Positively charged center of an atom composed of neutrons and posively charged protons and surrounded by negatively charged electons.
What is isotype? Atoms of the same element that have different numbers of neutrons in the nucleus.
What is compound? Substance composed of atoms of two or more different elements that are chemically continued.
What is covalent bond? Chemical bond formed when two atoms share electrons.
What is molecule? A group of atoms held together by covalent bonds;has no overall charage.
whwat is ion? Atom or group of atoms that gain or lose electrons.
What is ionic bond? Chemical bond formed by the attractive forces between two ions of opposite charge.
What is metabolism? All the chemical reactions that occur within an organism.
What is mixture? Combination of of substnces in which individual components retain their own properties.
What is solution? Mixture in which one or more substances are distributed evenly in another substance(solvent)
What is ph? Measure of how acidic or basic a solution is.Range is 0-14). Solution with below 7 is acidiic, above 7 is basic.
What is acid? An substance that forms hydrogen ions (H+) in water has has a ph below 7.
What is base? Any substance that forms hydroxide ions (OH-) in water and has a ph above 7.
Created by: jazznsoul64
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