Wed. Dec 18th assignment

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What is a chemical equation?

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A chemical equation is a symbolic representation of a chemical reaction, showing the reactants and products along with their quantities.

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What is a coefficient in a chemical equation?

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A coefficient is a number placed in front of a chemical formula in an equation to indicate how many molecules or moles of that substance are involved in the reaction.

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What is a subscript in a chemical formula?

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A subscript is a small number written to the lower right of a chemical symbol that indicates the number of atoms of that element in a molecule.

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What is the difference between an exothermic and an endothermic reaction?

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An exothermic reaction releases heat to the surroundings, while an endothermic reaction absorbs heat from the surroundings.

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How do you balance a chemical equation?

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To balance a chemical equation, adjust the coefficients of the reactants and products to ensure that the number of atoms of each element is the same on both sides of the equation.

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What is the law of conservation of mass?

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The law of conservation of mass states that mass is neither created nor destroyed in a chemical reaction; the total mass of reactants equals the total mass of products.

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What is a reactant?

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A reactant is a substance that undergoes a chemical change in a reaction.

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What is a product in a chemical reaction?

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A product is a substance that is formed as a result of a chemical reaction.

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What does it mean for a reaction to be in equilibrium?

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A reaction is in equilibrium when the rates of the forward and reverse reactions are equal, resulting in constant concentrations of reactants and products.

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What is a catalyst?

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A catalyst is a substance that increases the rate of a chemical reaction without being consumed in the process.