What are the reactions in a chemical reaction?
Input
Output
Substances that form by reactions
Substances that speed up reactions
The reactions in a chemical reaction are the substances or molecules that undergo a change or transformation during the reaction. These substances are called reactants.
The output of a chemical reaction is the end result or products formed as a result of the reaction. These products are usually different from the reactants and may have different properties.
In addition to reactants and products, chemical reactions may also involve the presence of substances called catalysts. Catalysts are substances that speed up the rate of a chemical reaction without being consumed in the reaction themselves. They facilitate the reaction by providing an alternative reaction pathway with lower activation energy. Thus, catalysts do not appear as reactants or products in the overall chemical reaction equation.
In a chemical reaction, there are typically two types of substances involved: reactants and products.
1. Reactants: These are the substances that participate in the chemical reaction and undergo a transformation. They are the starting materials of the reaction. Reactants are typically written on the left-hand side of a chemical equation.
2. Products: These are the substances that are formed as a result of the chemical reaction. They are the end products of the reaction. Products are typically written on the right-hand side of a chemical equation.
For example, in the chemical reaction between hydrogen gas (H2) and oxygen gas (O2) to form water (H2O), the reactants are hydrogen gas and oxygen gas, while the product is water.
Furthermore, some chemical reactions involve the use of catalysts. Catalysts are substances that speed up the reaction without being consumed in the process. They are not considered reactants or products, but they play a crucial role in facilitating the reaction.
It's important to note that in a balanced chemical equation, the number of atoms of each element is the same on both sides of the equation, representing the law of conservation of mass.
In a chemical reaction, the substances involved are called reactants and products.
The reactants are the substances present at the beginning of the reaction, which undergo chemical changes. These changes occur when the reactant molecules collide with each other and undergo rearrangement of atoms to form new substances.
The products, on the other hand, are the substances formed as a result of the reaction. These substances are the result of the rearrangement of atoms from the reactants.
For example, let's take the simple chemical reaction between hydrogen and oxygen to form water. The reactants in this reaction are hydrogen (H2) and oxygen (O2). Upon reacting, they rearrange their atoms to form water (H2O), which is the product of the reaction.
Now, regarding substances that speed up reactions, these are called catalysts. Catalysts are substances that increase the rate of a chemical reaction by providing an alternative reaction pathway with a lower activation energy. They are not consumed in the reaction, meaning they remain unchanged and can be reused.
Overall, in a chemical reaction, the reactants undergo rearrangement of atoms to form new substances called products, and catalysts can be present to speed up the reaction without being consumed themselves.