science vocab
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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| What does Law of Conservation mean? | The law stating that in a chemical reaction, matter is neither gained nor lost.
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| What does Physical Change mean? | A change from one state (solid or liquid or gas) to another without a change in chemical composition
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| What does Chemical Change mean? | Any process determined by the atomic and molecular composition and structure of the substances involved
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| What does Element mean? | A Substance that cannot be broken down into simpler substances.
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| What does Chemical Formula mean? | An expression which states the number and type of atoms present in a molecule of a substance.
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| What does Element(Diatomic) molecule mean? | The smallest particle of a substance that retains the chemical and physical properties of the substance and is composed of two or more atoms; a group of like or different atoms held together by chemical forces.
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| What does Compound Molecule mean? | A compound regarded as a union of molecules retaining their identities
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| What does Chemical Change mean? | A representation of a chemical reaction using symbols of the elements to indicate the amount of substance, usually in moles, of each reactant and product
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| What does Chemical Reaction mean? | Process in which one or more substances are changed into others
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| What does Reactant mean?(In a chemical equation) | A substance that participates in a chemical reaction, especially a substance that is present at the start of the reaction
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| What does Products mean?(In a chemical equation) | A product is a substance that is formed as the result of a chemical reaction.
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| What does Coefficient mean?(In a chemical equation | The number of molecules of reactants or products.
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| What does Subscript mean?(In a chemical equation) | Indicate the ratio of elements
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| What does Diatomic Molecule mean? | A molecule that contains two atoms.
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