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Why does it appear there is less material after a chemical reaction?
Wiki User
∙ 12y ago
The material still has the same amount. However, some of the matter leaves after the chemical reaction that changes the matter's molecular structure.
Wiki User
∙ 12y ago
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Why would a chemical reaction stop?
Reactions stop because after time there are less reactants so the chemical reaction starts to slow down. As there are less and less reactants the chemical reaction gets slower and slower until it stops.
What does lowering the temperature have on the speed of most chemical reactions?
The molecules will have less energy because temperature, especially heat, proviedes energy and the chemical reaction will take place in a lesser amount of time than with a chemical reaction under high temperature.
By decreasing this you can speed up a chemical reaction?
Decrease the activation energy to speed up a chemical reaction.
When a catalyst is present and more or less activation energy is needed to start a chemical rection?
A catalyst reduces the amount of activation energy needed to start a chemical reaction.
What is an exothermic reaction?
An exothermic reaction is a chemical reaction that is done by the release of heat. It gives out energy to its surroundings. The energy needed for the reaction to occur is less than the total energy released.
What chemical reaction can be used to make a liquid less alkaline?
This chemical reaction is called neutralization.
Why would a chemical reaction stop?
Reactions stop because after time there are less reactants so the chemical reaction starts to slow down. As there are less and less reactants the chemical reaction gets slower and slower until it stops.
What is the best term to describe a chemical reaction in which the reactants have less potential energy than the products?
A chemical reaction whose reactants have less potential energy than the products would be called an endothermic reaction.
What material used to decrease the rate of reaction is?
Water for one. If a reaction is diluted, the components of the reaction are less likely to contact one another. This will mean that they will be also less likely to continue a reaction.
Why catalyst affect the rate of chemical reaction?
They provide alternative pathway for the reaction, usually with less energy barrier
When a catalyst is present more less activation energy is needed to start a chemical reaction?
Less Ea.
When a catalyst is present is more or less activation energy needed to start a chemical reaction?
Less Ea.
What is the difference between the predicted and actual yield in a chemical reaction?
The actual yield of a reaction product is always less than the yield from the chemical equation. This is because of error.
What is a type of chemical reaction where the energy of the products is less than the energy of the reactants?
When a reaction has products that have a lower temperature than the reactants did, the reaction is endothermic.
Does a battery weigh less after completely discharging?
No. A chemical reaction has taken place but mass is conserved.
What does lowering the temperature have on the speed of most chemical reactions?
The molecules will have less energy because temperature, especially heat, proviedes energy and the chemical reaction will take place in a lesser amount of time than with a chemical reaction under high temperature.
What is the law in a chemical reaction the number of atoms present in the reactants is always equal to the number of atoms present in the products?
more than in the products or less than in the products depending on the kind of chemical reaction
