Chemical Reactions and Equations

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What is a chemical reaction?
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A chemical reaction is a process in which substances interact to form new substances with different properties.
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Define reactants and products in chemistry.
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Reactants are substances that start a chemical reaction, while products are substances formed as a result of a chemical reaction.
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What is the law of conservation of mass?
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The law states that mass is neither created nor destroyed in a chemical reaction; it is conserved.
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What is a balanced chemical equation?
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A balanced chemical equation has equal numbers of each type of atom on both sides of the equation, indicating the conservation of mass.
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What is a catalyst?
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A catalyst is a substance that speeds up a chemical reaction without being consumed by it.
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What is an exothermic reaction?
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An exothermic reaction is a chemical reaction that releases energy in the form of heat or light.
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What is an endothermic reaction?
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An endothermic reaction is a chemical reaction that absorbs energy from its environment.
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What is activation energy?
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Activation energy is the minimum amount of energy required to start a chemical reaction.
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Define synthesis reaction.
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A synthesis reaction is a type of chemical reaction where two or more simple substances combine to form a more complex product.
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What is a decomposition reaction?
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A decomposition reaction involves breaking down a compound into simpler substances.
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Define single displacement reaction.
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A single displacement reaction is a chemical reaction where one element is replaced by another in a compound.
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What is a double displacement reaction?
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A double displacement reaction occurs when parts of two compounds swap places to form two new compounds.
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What was observed in a combustion reaction?
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A combustion reaction is a high-temperature exothermic reaction between a substance and oxygen, often producing heat and light.
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What information does a chemical equation provide?
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A chemical equation shows the reactants and products involved in a reaction and their relative amounts.
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How can the rate of a reaction be increased?
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The rate of a reaction can be increased by factors such as increasing temperature, concentration, surface area, or adding a catalyst.
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