FlashcardChemical Reactions

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What is a combustion reaction?

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A combustion reaction is a chemical reaction that occurs when a substance combines with oxygen, releasing energy in the form of light and heat. Example: Burning of hydrocarbons.

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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 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. Example: A + B → AB.

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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. Example: AB → A + B.

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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: A + BC → AC + B.

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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: AB + CD → AD + CB.

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How do you calculate the mass of a product in a chemical reaction?

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To calculate the mass of a product, use the law of conservation of mass: Mass of reactants = Mass of products. Rearrange to find the unknown mass.

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What is the role of surface area in chemical reactions?

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The larger the surface area of the reactants, the faster the reaction rate. This is because more particles are available to collide and react.

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How many moles of oxygen are produced from the decomposition of potassium chlorate?

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The decomposition of 2 KClO3 produces 2 KCl and 3 O2. Therefore, 6.0 moles of KClO3 produce 9 moles of O2.

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What is the relationship between moles and grams in a chemical reaction?

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Moles are a measure of the amount of substance. To convert moles to grams, use the formula: grams = moles × molar mass.