Chemical Reactions and Equations

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What is a chemical reaction?

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A chemical reaction is a process that leads to the transformation of one set of chemical substances to another. It involves breaking and forming bonds between atoms.

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What is a single replacement reaction?

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A single replacement reaction is a type of chemical reaction where one element replaces another in a compound. Example: Cu + 2 AgNO3 -> Cu(NO3)2 + 2 Ag.

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What is a double replacement reaction?

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A double replacement reaction is a type of chemical reaction where two compounds exchange ions or bonds to form two new compounds. Example: FeCl3 + 3 NaOH -> 3 NaCl + Fe(OH)3.

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What is a decomposition reaction?

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A decomposition reaction is a type of chemical reaction where a single compound breaks down into two or more simpler products. General formula: AB -> A + B.

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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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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.

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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. It is present at the start of the reaction.

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What is a product?

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A product is a substance that is formed as a result of a chemical reaction. It is present at the end of the reaction.

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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.

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What is the general formula for a synthesis reaction?

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The general formula for a synthesis reaction is A + B -> AB, where two or more reactants combine to form a single product.