Chemical Rxns & Balancing Equations_PhySci

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What is the Law of Conservation of Mass?

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The Law of Conservation of Mass states that in a chemical reaction, matter is neither created nor destroyed; the mass of the reactants equals the mass of the products.

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What does it mean for a chemical equation to be balanced?

Back

A balanced chemical equation has the same number of each type of atom on both sides of the equation, indicating that mass is conserved.

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How do you determine if a chemical equation is balanced?

Back

Count the number of atoms of each element on both sides of the equation. If they are equal, the equation is balanced.

Front

What is a reactant in a chemical reaction?

Back

A reactant is a substance that undergoes change during a chemical reaction, found on the left side of a chemical equation.

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What is a product in a chemical reaction?

Back

A product is a substance that is formed as a result of a chemical reaction, found on the right side of a chemical equation.

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What is the significance of coefficients in a chemical equation?

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Coefficients indicate the number of molecules or moles of a substance involved in the reaction, helping to balance the equation.

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What is a chemical formula?

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A chemical formula is a way of expressing the composition of a substance using symbols for its elements and numbers to indicate the quantity of each element.

Front

How many oxygen atoms are in the molecule H2O?

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There is 1 oxygen atom in the molecule H2O.

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What does it mean to 'balance' a chemical equation?

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To balance a chemical equation means to adjust the coefficients so that the number of atoms of each element is the same on both sides of the equation.

Front

What is the formula for glucose?

Back

The formula for glucose is C6H12O6.