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chemical a ctio 00 S a chemical reaction is when a new Substance is formed and it is not easily reversed signs of a chemical reaction are: - colour change -Percipitation (Solid formed) - Effervescence (gas given off / bubbles) - energy change (heat, light, Sound, electricity) everyday Chemical reactions : cooking - rusting - burning -making materials - Sticking - living (breathing) HORD EQUATION d example ") when copper and Sulfur are heated together, a reaction occurs and a new product called is formed. Copper + Sulfur Reactants chemical copper sulfide > copper Sulfid Product 2) Sodium metals reacts with water to produce hydrogen and Sodium hydroxide. Sodium metal + water ->hydrogen + Sodium hydroxide. 31 Potassium metal reacts with oxygen in the atmosphere to produce potassium oxide. Potassium + Oxygen -> Potassium Oxide 4) Hydrogen burns (reacts with oxygen) to produce water Hydrogen + Oxygen -> Water 5) Sodium reacts with chlorine producing Sodium chloride Sodium Chlorine ->Sodium chloride. COLLISION THEORY for particles to react they must collide. The more collisions the faster the reactions will be. h particles must have the correct. orientation and collide with enough energy for collisions to be Successful. factors affecting the speed of a reaction Temperature- The higher the temperature, the faster the chemical reaction. This is because at higher temperatures the particles have more energy and move around more quickly. This results in a greater number of successful collisions. Concentration. The higher the concentration the faster the reaction. This is because higher have the greater...
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Alternative transcript:
amount of particles. means more successful collisions will take place, This Particle Size- Decreasing the particle size increases the speed of a chemical reaction. This is because the Smaller the particles have larger Surface areas. This means that more successful collisions will take place. catalysT- Catalyst Speeds up a chemical reaction without being used up. RATE OF REACTION The rate of a chemical reaction is a measure the speed of a chemical reaction. The progress of a reaction can be followed by measuring the: - changes in concentration of the reactants or products - Changes in the mass of the reactants or products - Changes in the volume of the products. The Steeper the Slope the faster the reaction Calculating average cate Average rate change in quanity A quanity_ A time mass of reactants volume of gas produced (cm³) Concentration average rate gs-¹ cm³ S- moll¹ S units EXOTHERMIC Releases heat energy ENDOTHERMIC - Absorbs heat energy.
rates of reaction notes - C H E M I S T R Y
Asma Farzand
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rates of reaction notes - C H E M I S T R Y
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chemical a ctio 00 S a chemical reaction is when a new Substance is formed and it is not easily reversed signs of a chemical reaction are: - colour change -Percipitation (Solid formed) - Effervescence (gas given off / bubbles) - energy change (heat, light, Sound, electricity) everyday Chemical reactions : cooking - rusting - burning -making materials - Sticking - living (breathing) HORD EQUATION d example ") when copper and Sulfur are heated together, a reaction occurs and a new product called is formed. Copper + Sulfur Reactants chemical copper sulfide > copper Sulfid Product 2) Sodium metals reacts with water to produce hydrogen and Sodium hydroxide. Sodium metal + water ->hydrogen + Sodium hydroxide. 31 Potassium metal reacts with oxygen in the atmosphere to produce potassium oxide. Potassium + Oxygen -> Potassium Oxide 4) Hydrogen burns (reacts with oxygen) to produce water Hydrogen + Oxygen -> Water 5) Sodium reacts with chlorine producing Sodium chloride Sodium Chlorine ->Sodium chloride. COLLISION THEORY for particles to react they must collide. The more collisions the faster the reactions will be. h particles must have the correct. orientation and collide with enough energy for collisions to be Successful. factors affecting the speed of a reaction Temperature- The higher the temperature, the faster the chemical reaction. This is because at higher temperatures the particles have more energy and move around more quickly. This results in a greater number of successful collisions. Concentration. The higher the concentration the faster the reaction. This is because higher have the greater...
chemical a ctio 00 S a chemical reaction is when a new Substance is formed and it is not easily reversed signs of a chemical reaction are: - colour change -Percipitation (Solid formed) - Effervescence (gas given off / bubbles) - energy change (heat, light, Sound, electricity) everyday Chemical reactions : cooking - rusting - burning -making materials - Sticking - living (breathing) HORD EQUATION d example ") when copper and Sulfur are heated together, a reaction occurs and a new product called is formed. Copper + Sulfur Reactants chemical copper sulfide > copper Sulfid Product 2) Sodium metals reacts with water to produce hydrogen and Sodium hydroxide. Sodium metal + water ->hydrogen + Sodium hydroxide. 31 Potassium metal reacts with oxygen in the atmosphere to produce potassium oxide. Potassium + Oxygen -> Potassium Oxide 4) Hydrogen burns (reacts with oxygen) to produce water Hydrogen + Oxygen -> Water 5) Sodium reacts with chlorine producing Sodium chloride Sodium Chlorine ->Sodium chloride. COLLISION THEORY for particles to react they must collide. The more collisions the faster the reactions will be. h particles must have the correct. orientation and collide with enough energy for collisions to be Successful. factors affecting the speed of a reaction Temperature- The higher the temperature, the faster the chemical reaction. This is because at higher temperatures the particles have more energy and move around more quickly. This results in a greater number of successful collisions. Concentration. The higher the concentration the faster the reaction. This is because higher have the greater...
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SuSSan, iOS User
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Alternative transcript:
amount of particles. means more successful collisions will take place, This Particle Size- Decreasing the particle size increases the speed of a chemical reaction. This is because the Smaller the particles have larger Surface areas. This means that more successful collisions will take place. catalysT- Catalyst Speeds up a chemical reaction without being used up. RATE OF REACTION The rate of a chemical reaction is a measure the speed of a chemical reaction. The progress of a reaction can be followed by measuring the: - changes in concentration of the reactants or products - Changes in the mass of the reactants or products - Changes in the volume of the products. The Steeper the Slope the faster the reaction Calculating average cate Average rate change in quanity A quanity_ A time mass of reactants volume of gas produced (cm³) Concentration average rate gs-¹ cm³ S- moll¹ S units EXOTHERMIC Releases heat energy ENDOTHERMIC - Absorbs heat energy.