Chemistry Quiz #2
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Why do aroms form chemical bonds? | They want to become stable and fill their outer shell with valence electrons
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| Valance Electrons | Electrons in the outer shell
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| Ion | A positive or negative charged atom
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| Ionic bond | a bond made by the transfer of electrons
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| Covalent bond | a bond made by sharing electrons
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| Chemical reaction | when bonds are made or broken to form new substances
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| What might indicate the occurrence of a reaction (4 things) | A spontanious color change, a spontanious production of energy such as heat or light, the production of precipitate, the formation of a gas
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| What is a chemical reaction? | A process that changes 1 or more substances into another substance
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| What is a chemical equation? | A short-hand way of showing whats happening during a chemical reaction
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| Reactant | A beginning material. Written before the arrow
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| Product | An ending material. Products are written after the arrow.
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| A balance equation | When writing a chemical equation the number of atoms on the reactant side MUST equal the number on the product side?
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| Mass/energy (3) | cant be created, cant be destroyed, can only change
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| What factors affect the rate a reaction takes place? (4) | Temperature, surface area, concentration, add of catalyst.
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You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
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Created by:
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