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In order for two molecules to react they must:
1) Have sufficient energy to overcome whatever kinetic barrier exists to form a product in a realistic time period. We call this the activation energy.
2) Form a product which is at a lower total energy state than the two initial molecules.
What else can I help you with?
True or False chemical reaction occurs at the same rate no matter what size of the reactant particles?
False. The rate of a chemical reaction can be influenced by the size of the reactant particles. Smaller particles have a larger surface area, allowing for more frequent collisions between particles and therefore potentially increasing the rate of reaction.
Describe the collision theory in relation to reaction rate?
When you have a higher concentration of elements in the reaction you are no matter what speed going to have a faster reaction taking place however the lower the concentration it is the more time it will take for the reaction to take place this process is similar to pressure as it reflects how the more of it there is the faster the reaction will be and how if there is less of it the slower the reaction will be. (related to the Collision Theory)
What is the definition of excess reactant?
An excess reactant is a reactant in a chemical reaction that is present in a quantity greater than required for the reaction to take place. It is not completely consumed during the reaction, leaving some of it leftover.
How will decreasing the reactant concentration affect the rate of reaction?
Decreasing the reactant concentration will slow the rate of the reaction. If you use the idea of adding oxygen and hydrogen to make water and decease the amount of one, you will produce less water. It doesn't matter which reactant is less as there are just are not enough to go around.
A reaction is most likely to occur when reactant particles collide with?
with both proper energy and proper oreantation
True or False chemical reaction occurs at the same rate no matter what size of the reactant particles?
False. The rate of a chemical reaction can be influenced by the size of the reactant particles. Smaller particles have a larger surface area, allowing for more frequent collisions between particles and therefore potentially increasing the rate of reaction.
What is the name for the chemical that takes place in a reaction?
reactant
Describe the collision theory in relation to reaction rate?
When you have a higher concentration of elements in the reaction you are no matter what speed going to have a faster reaction taking place however the lower the concentration it is the more time it will take for the reaction to take place this process is similar to pressure as it reflects how the more of it there is the faster the reaction will be and how if there is less of it the slower the reaction will be. (related to the Collision Theory)
What is the definition of excess reactant?
An excess reactant is a reactant in a chemical reaction that is present in a quantity greater than required for the reaction to take place. It is not completely consumed during the reaction, leaving some of it leftover.
How will decreasing the reactant concentration affect the rate of reaction?
Decreasing the reactant concentration will slow the rate of the reaction. If you use the idea of adding oxygen and hydrogen to make water and decease the amount of one, you will produce less water. It doesn't matter which reactant is less as there are just are not enough to go around.
Why do faster moving particles increase the rate of reaction?
Faster moving particles have more kinetic energy, which increases the likelihood of successful collisions between reactant molecules. This results in more frequent and energetic collisions, leading to a higher rate of reaction.
A reaction is most likely to occur when reactant particles collide with?
with both proper energy and proper oreantation
What is one of of the original substances before a chemical reaction takes place?
a reactant
Did a chemical reaction take place if a reactant is smaller?
Yes. If Concentration of a reactant has decreased, that means that that concentration was used in the formation of a product.
What are 4 things that can affect the rate of a reaction?
1. Temperature: Depending on the temperature of the reactants, the reaction rate will differ. The higher the temperature (or the hotter the reactant is), the quicker the reaction will occur. The cooler the reactant is, the longer it will take for a reaction to take place. The heat causes the particles to move quickly, and due to the Collision Theory, which states that in order for a reaction to occur, molecules must collide, the particles will be more likely to bump into each other, and so the reaction will occur faster.2. Concentration: The higher the concentration of a reactant, the quicker the reaction will occur. This means that there are more particles of that particular substance, meaning it will collide more frequently into the particles of the other reactant. This increases the reactant rate because the more concentrated a reactant is, it means that the less space there is between the two reactants.3. Surface Area: Basically, the more particles that are exposed during the experiment, the faster the reaction will occur. The more the particles are exposed, the faster it is for the other reactant to collide into the particles, meaning the reaction rate will increase.4. Catalysts: Catalysts are substances that increase the rate of reaction by speeding up the reaction without being used up in the reaction. It does not affect the reactants in any other way than making them collide into each other more frequently, and it doesn't affect the product (or products) produced
How does the surface area affect the rate of a reaction?
The powdered solid has a greater surface area than the single lump of solid. So the larger the surface area of the solid, the faster the reaction will be. Increasing the surface area of the solid increases the chances of collision taking place between the molecules of reactants, if it is a reaction in liquid or gaseous phase.
What is a reactant that binds to a catalyst?
A reactant that binds to a catalyst is known as a substrate. Substrates bind to the active site of the catalyst, where the chemical reaction takes place. This binding lowers the activation energy required for the reaction to occur.
