CAVA 302 303 S1 U5 L1 Conservation of Mass
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
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| Chemical [...] are used to describe chemical reactions. | Chemical equations are used to describe chemical reactions.
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| In a chemical reaction, the substances you begin with are the [...]. | In a chemical reaction, the substances you begin with are the reactants.
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| In a chemical reaction, the substances you end up with are the [...]. | In a chemical reaction, the substances you end up with are the products.
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| In a chemical equation, the arrow always points to the [...]. | In a chemical equation, the arrow always points to the products.
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| [...] react with each other to produce products. | Reactants react with each other to produce products.
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| Reactants react; [...] are produced.. | Reactants react; Products are produced..
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| Chemical equations are typically written using chemical [...]. | Chemical equations are typically written using chemical symbols.
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| Chemical equations: Reactants are separated from each other with a [...] sign. | Chemical equations: Reactants are separated from each other with a + sign.
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| Chemical equations: Products are separated from each other with a [...] sign. | Chemical equations: Products are separated from each other with a + sign.
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| Chemical equations: Reactants and Products are separated from each other with an [...]. | Chemical equations: Reactants and Products are separated from each other with an arrow.
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| Chemical equations: The arrow always points to the [...]. | Chemical equations: The arrow always points to the products.
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| Chemical equations: If the arrow is pointing away from it, it's a [...]. | Chemical equations: If the arrow is pointing away from it, it's a reactant.
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| Chemical equations: if the arrow is pointing toward it, it's a [...]. | Chemical equations: if the arrow is pointing toward it, it's a product.
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| The law of conservation of mass states that the mass of the reactants in a chemical reaction is always [...] the mass of the products. | The law of conservation of mass states that the mass of the reactants in a chemical reaction is always equal to the mass of the products.
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| Conserved' means 'protected' or '[...]' | Conserved' means 'protected' or 'retained'
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| The law of [...] of mass says that mass is protected or retained in a chemical reaction; it doesn't change as reactants turn into products. | The law of conservation of mass says that mass is protected or retained in a chemical reaction; it doesn't change as reactants turn into products.
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| [...] of Mass was discovered by Antoine Lavoisier in the mid-1700s. | Conservation of Mass was discovered by Antoine Lavoisier in the mid-1700s.
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