0
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 else can I help you with?
What does it mean to say that a reaction has reached equililibrium?
When a reaction has reached equilibrium, the rate of the forward reaction is equal to the rate of the reverse reaction. At equilibrium, the concentrations of reactants and products remain constant over time, but the reaction is still ongoing.
If the chemical properties of the substance have not changed has a chemical reaction occurred?
It depends: just try to relate, try to write a chemical equation for and see if there are byproducts. Most likely, if the same chemical still has its same properties After the reaction, a chemical reaction has not occurred.
In a reverse reactionproducts are formed from reactants and reactants are formed from products When they yield the same amount?
This indicates that the reaction has reached equilibrium, where the rate of the forward reaction is equal to the rate of the reverse reaction. At equilibrium, the concentrations of reactants and products remain constant over time, but both are still present in the system.
How do you know that there were just as many atoms as there were before they are just in different explain how?
Atoms can change their arrangements and bonds during chemical reactions, but the total number of atoms remains the same due to the law of conservation of mass. This principle states that matter cannot be created or destroyed in a closed system, meaning the atoms present before a reaction will still exist after the reaction, albeit in different configurations. For example, in a combustion reaction, the atoms of the reactants rearrange to form new products, but the total count of each type of atom remains unchanged. This can be demonstrated by balancing chemical equations, which reflect this conservation.
What is true of a dynamic equilibrium?
When the concentration of the reactants is equal to the concentration of the products and does not change over time, the system has reached dynamic equilibrium. Dynamic equilibrium means that the reaction is still occurring and does not stop. The reaction never reaches completion, because the reverse reaction is moving at the same rate as the forward reaction. The products and reactants are balanced. The reactants are producing at the same speed that the products are changing back into the reactants. When a reaction is in dynamic equilibrium, it is hard to tell that a reaction is occurring. There is no net change in the concentration of the products or reactants because both forward and reverse reactions are moving at the same rate.
When the limiting reactant in a chemical reaction is completely used the?
When the limiting reactant in a chemical reaction is completely used, the reaction stops because there are no more reactants available to continue producing products. At this point, any excess reactants or products may still be present in the reaction mixture. The amount of product formed will be determined by the amount of limiting reactant that was originally present.
Why is a catalyst written above the arrow in a chemical equation rather than with the reactants?
A catalyst is written above the arrow in a chemical equation to show that it is not consumed in the reaction and thus does not appear in the overall stoichiometry of the reaction. This means that it does not take part in the reaction as a reactant or a product, but it still helps in speeding up the reaction. Placing it above the arrow helps to distinguish it from other reactants or products.
What correctly describes any chemical reaction that has reached equilibrium?
At equilibrium, the rate of the forward reaction is equal to the rate of the reverse reaction. The concentrations of reactants and products remain constant, although they are still reacting. The equilibrium position can be affected by changes in temperature, pressure, or concentration.
Why does it appear there is less material after a chemical reaction?
During a chemical reaction, the atoms of the reactants rearrange to form products. The total mass of the products is equal to the total mass of the reactants according to the law of conservation of mass. However, it may appear that there is less material due to the formation of gases that escape into the surroundings or the formation of a precipitate that separates from the solution.
What happens in a reaction if it is at chemical equilibrium?
In a chemical system, there are forward and reverse reactions occurring constantly. As the forward reactions progress, the increased amount of products allows for more and more reverse reactions. Once the rate of the forward and reverse reactions are equal, the system is at equilibrium. The forward and reverse reactions continue at equal but opposite rates; however, there are no further changes in the concentration of the products and reactants.
What does it mean to say a reaction proceeds to 10 percent completion?
It means 10% of reactants have been converted into products and 90% are still there as reactants.
Can A reversible chemical reaction can only convert reactants to products true or false?
The answer to your question is "True" and "False."Let's suppose that there is a chemical compound in solution in one beaker and a second chemical compound in solution in a second beaker, and it is known that the two compounds react, but not completely, because the chemical reaction is reversible.We'll have to assume that the two solutions are completely mixed almost instantly after they are added together, and there are ways to do this, or that the forward and reverse reactions are very slow. Also, since the reaction is reversible, which compounds are the "reactants" and which ones are the "products" depends on how the chemical equation is written. The convention is that the compounds (or compound) written on the left side of the chemical equation are called the "reactants."Right when the two solutions are mixed, there are no products available yet to react via the reverse reaction to re-form the reactants. Therefore, even though the reaction is reversiblle, the only reaction that can occur is the forward reaction, that is the reaction of reactants to products.As soon as any product molecules are formed, some of them will react via the reverse reaction to re-form some of the the reactants. However, the concentration of the products will be very low a very short time after the reactants are mixed, which means that the reverse reaction will probably be slower than the forward reaction. This is not always the case because it depends on the relative rates of the forward and reverse reactions.I cannot write the equilibrium equations for the forward and reverse reactions here because they would get all messed up when this answer is saved. If you have not yet learned how to do this, it is definitely in your text book. The two most important things to learn and understand are: 1) All reversible reactions will eventually reach an equilibrium (at a given temperature), which is the point where the concentrations of the reactants and the concentration of the products are constant. The forward and reverse reactions are still taking place, but there is no net change in the concentration of any of the compounds involved in the reactions. 2) This is obvious if you think about it a little; the ratio of the forward and reverse equilibrium equations is equal to the ratio of the forward and reverse rate constants. This ration is usually denoted as k1/k-1.To summarize, the answer to your question is "True" only during a [usually] extremely brief time immediately after the reactants are first mixed together. At all times afterwards, the answer to your question is "False."
Describes chemical equilibrium?
Chemical equilibrium is a term used to describe a balanced condition within a system of chemical reactions. Essentially, when in chemical equilibrium, substances becomes definite and constant.
Do the products in a chemical reaction have the same prperties as the reactants?
In a chemical change chemical properties often change (like a substance's melting point or it's reactivity). In a physical change the materials have the same properties (a physical change would be like crushing rocks into sand). You can take wood, grind it into saw dust, but it is still wood. But if you burn it, the wood goes through a chemical change with the oxygen in the air and most of it is broken down into a gas (smoke) and the solid of which is left behind has a very different flammability property. (Suit, it doesn't burn.)
When substances go through a chemical change what happens to the mass'?
In a chemical change, the total mass of the substances involved before and after the reaction remains the same. This is known as the law of conservation of mass. This means that no atoms are created or destroyed during a chemical reaction.
Which term is used to defined substance that participate in chemical reactions?
Substances that participate in the complete, finished reaction are called reactants. Substances that participate for only part of the reaction (in other words, it is used up [or canceled out in the equation]) are called intermediates. Substances that do not participate in the reaction but are still added (and speed up the reaction [their identity is not changed]) are called catalysts.
What does it mean to say that a reaction has reached equililibrium?
When a reaction has reached equilibrium, the rate of the forward reaction is equal to the rate of the reverse reaction. At equilibrium, the concentrations of reactants and products remain constant over time, but the reaction is still ongoing.
