Chemical Reaction And Equation Flashcards
(18 cards)
What is a chemical reaction?
A chemical reaction is a process in which reactants transform into products, resulting in a change in chemical properties.
What are reactants and products?
Reactants are substances that undergo a chemical change, while products are the new substances formed as a result of the reaction.
Define a chemical equation.
A chemical equation represents a chemical reaction using symbols and formulae of the substances involved.
What is a combination reaction?
A combination reaction occurs when two or more reactants combine to form a single product.
Define a decomposition reaction.
A decomposition reaction involves a single reactant breaking down into two or more products.
What is a displacement reaction?
A displacement reaction occurs when a more reactive element displaces a less reactive element from a compound.
Explain a double displacement reaction.
In a double displacement reaction, ions are exchanged between two reactants to form new products.
What is a redox reaction?
A redox reaction involves both oxidation and reduction processes.
What is the law of conservation of mass?
The law states that matter cannot be created or destroyed in a chemical reaction; hence, the mass of reactants equals the mass of products.
How do you balance a chemical equation?
Balance a chemical equation by adjusting the coefficients to ensure the same number of atoms of each element on both sides.
What is an exothermic reaction?
An exothermic reaction releases energy, usually in the form of heat.
Define an endothermic reaction.
An endothermic reaction absorbs energy from its surroundings.
What is oxidation?
Oxidation involves the addition of oxygen or the removal of hydrogen.
Define reduction.
Reduction involves the removal of oxygen or the addition of hydrogen.
What is an oxidizing agent?
An oxidizing agent is a substance that gains electrons and is reduced in a chemical reaction.
Define a reducing agent.
A reducing agent is a substance that loses electrons and is oxidized in a chemical reaction.
What is corrosion?
Corrosion is the gradual destruction of materials, usually metals, by chemical reactions with environmental elements.
Example: Rusting of iron.
Define rancidity.
Rancidity is the process by which fats and oils in food undergo oxidation, leading to unpleasant odors and flavors.
