puta

Cards (25)

  • Positive effect of chemical reactions on life and the environment

    Applied in food preservation and materials production
  • Fire control methods
    Removing heat
  • Corrosion prevention in metals
    Reducing contact with oxygen
  • Higher temperatures

    Generally increase the reaction rate
  • Concentration does not affect the rate of chemical reaction
  • Amount of goods is not a possible cause of spoilage in perishable goods not properly stored
  • Activation Energy
    The amount of energy required to break the bonds between the reacting molecules
  • Treating clothes stains with higher amounts of calamansi extract or laundry bleach

    Removes the stains faster
  • Factors affecting rates of chemical reactions important in food preservation
    • Temperature
  • Catalyst
    Speeds up the reaction without being consumed
  • Reducing the size of a solid reactant
    Decreases the rate of the chemical reaction
  • Factors affecting the rate of chemical reactions
    • Temperature
  • The Law of Conservation of Mass applies to chemical reactions and states that mass can neither be created nor destroyed
  • Double displacement reaction
    Involves the exchange of ions between two compounds
  • Single displacement reaction
    • A + BCB + AC
  • Oxygen is required for a combustion reaction to occur
  • Decomposition reaction
    A single compound breaks down into two or more simpler substances
  • Reaction between an acid and a base
    Produces water and salt
  • Filtration is not a type of chemical reaction
  • According to the Law of Conservation of Mass, the total mass of substances before and after a chemical reaction remains the same
  • Synthesis reaction
    Two or more substances combining to form a new compound
  • Sign of a chemical reaction
    • Water boiling
  • The Law of Conservation of Mass states that mass cannot be created or destroyed during a chemical reaction
  • Chemical reaction
    A process that changes the chemical composition of substances
  • Lowering the temperature
    Slows down chemical reactions that cause food spoilage