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Which methods will usually cause a reaction to speed up?
Combining the reactants at a lower temperature. Reducing the concentration of reactants. Grinding one of the reactants into a powder. Removing the catalyst.
What would cause entropy to decrease in a reaction?
The products becoming more ordered than the reactants
What cause the concentration of reactants to affect the reaction?
The more concentrated the solution of reactants, the more the reaction wants to push right making more products.Same goes vice-versa; if there's more products, then the reaction will push left producing more reactants.
What factors affect the rate of a chemical reaction?
Temperature of system (molecular vibrational speed), Pressure of system (proximity), Catalysts (lowers activation energy of reaction), Volume of vessel (related to pressure), and Concentration of reagents (more collisions).
What direction doe the equilibrium shift when reactants are added to it?
Adding reactants to an equilibrium mixture will cause the equilibrium to shift to the right in order to consume the excess reactants. This helps restore the equilibrium conditions by favoring the forward reaction to produce more products.
In which reaction will decreasing the pressure cause more products to form?
2H2O2(g) 2H2O(g) + O2(g)
Which methods will usually cause a reaction to speed up?
Combining the reactants at a lower temperature. Reducing the concentration of reactants. Grinding one of the reactants into a powder. Removing the catalyst.
Why does raising the temperature cause liquid to boil?
Decreasing the pressure -APEX
When after a chemical reaction do the reactants still exist?
There can be many cases. One of them being that you take the reactants in excess then a little portion of the reactants remain. Another is the reaction cannot take place. In reversible reactions. But you should note that the exact proportion of reaction cannot remain in a reaction cause you are trying to form new comounds during this reaction.
What Conditions Cause A Reaction To Occur?
A reaction occurs when reactants come into contact with each other and have sufficient energy to overcome the activation energy barrier. Factors that can affect the likelihood of a reaction include concentration, temperature, pressure, and the presence of a catalyst.
What would cause the greatest decrease in the rate of chemical reaction?
For most reactions, the lowering of the temperature of the reactants.
What would cause entropy to decrease in a reaction?
The products becoming more ordered than the reactants
Which of these changes would NOT cause an increase in the pressure of a gaseous system?
Decreasing the temperature of the system would NOT cause an increase in pressure. According to the ideal gas law, pressure and temperature are directly proportional when other variables are constant. Therefore, decreasing the temperature would result in a decrease in pressure.
What causes an increase of speed in a combustion reaction?
An increase in temperature, pressure, or concentration of reactants can cause an increase in speed in a combustion reaction. This provides more energy to break the bonds and allows the reaction to proceed faster.
What cause the concentration of reactants to affect the reaction?
The more concentrated the solution of reactants, the more the reaction wants to push right making more products.Same goes vice-versa; if there's more products, then the reaction will push left producing more reactants.
What factors affect the rate of a chemical reaction?
Temperature of system (molecular vibrational speed), Pressure of system (proximity), Catalysts (lowers activation energy of reaction), Volume of vessel (related to pressure), and Concentration of reagents (more collisions).
What would cause entropy decreasing a reaction?
CO(g)+3H2(g)->CH4(g)+H2O(g)
