SPS3: Law of Conservation of Matter Vocabulary Quiz Prep
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- Question 1 of 6
1. Question
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- Process of breaking chemical bonds in one or more substance and the reforming of new bonds to create new substances
- A solid that forms and is insoluble in a liquid reaction mixture.
- A starting ingredient that goes into a chemical reaction.
- A new substance formed in a chemical reaction.
- Chemical reaction
- Precipitate
- Reactant
- Product
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2. Question
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- A law that states that the total mass of the reactants equals the total mass of the products in a chemical reaction.
- Sum of the atomic mass values of the atoms in a chemical formula.
- An expression of chemical reaction using chemical formulas and symbols.
- A whole number placed in front a chemical formula in a chemical equation.
- Law of conservation of mass
- Formula mass
- Chemical equation
- Coefficient
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3. Question
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- A chemical reaction in which two or more substances combine to form a new compound.
- A chemical reaction in which a compound is broken down into two or more smaller substances.
- A chemical reaction in which one element replaces a similar element in a compound.
- A chemical reaction in which ion from two compounds in solutions exchange places to produce two new compounds.
- Synthesis reaction
- Decomposition reaction
- Single-displacement/replacement reaction
- Double-displacement/replacement reaction
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4. Question
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- A chemical reaction that results in a large amount of energy being released when a carbon compound combines with oxygen.
- A chemical reaction that releases more energy than it uses.
- A chemical reaction that uses more energy than it releases.
- Amount of energy needed to break chemical bonds in the reactants to start a reaction.
- Combustion reaction
- Exothermic
- Endothermic
- Activation energy
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5. Question
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- An endothermic reaction that occurs when an ionic compound dissolves in water to make an ionic solution.
- A reactant that is used up first in a chemical reaction.
- A reactant that is not completely used up in a chemical reaction.
- The actual yield of a product in a chemical reaction divided by the predicted yield and multiplies by 100.
- Dissolution reaction
- Limiting reactant
- Excess reactant
- Percent yield
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6. Question
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- The concept that all atoms and molecules exhibit random motion.
- The change in concentration of reactants or products in a chemical reaction over time.
- A molecule added to a chemical reaction that increases the reaction rate without getting used up in the process.
- A molecule that slows down a chemical reaction.
- Kinetic molecular theory
- Reaction rate
- Catalyst
- Inhibitor
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