During a physical reaction, the arrangement of atoms and molecules changes, but no new substances are formed. This means that the chemical composition remains the same before and after the reaction. Examples of physical reactions include changes in state (solid to liquid, liquid to gas) or changes in shape.
The rusting of iron is an example of a chemical change that can take a long time to occur. When iron is exposed to oxygen and moisture over an extended period, a chemical reaction takes place that forms iron oxide (rust) on the surface of the metal. This process typically happens gradually over months or years.
The rusting of iron is an example of a chemical change that can take a long time to occur, depending on the environment. It involves the reaction of iron with oxygen and water over a period of time to form iron oxide (rust).
A reagent is a substance that is added to a chemical reaction to cause a chemical change or to help facilitate the reaction. Reagents can help start a reaction, speed it up, or control the outcome. They are essential for many chemical processes to occur.
Catalysts
This is a sign of a chemical reaction.
a chemical reaction occur due to the reactivity nature of the elements to get their stability From maddiswamy09@gmail.com
Chemical changes occur after a chemical reaction.
Heat?
It depends on the chemical reaction. For example when you burn something it is a chemical reaction, but that is way different than if you mix baking soda and vinegar which is also a chemical reaction. It changes the matter into a different chemical matter make up of that substance.
1. Dissolving with reaction - an example is dissolving in an acid - involve a chemical change because new compounds are formed. 2. Dissolving without a reaction - for example dissolution of table salt in water - is not a chemical change; only dissociation can occur.
Any reaction occur.
In the chemical installations of the plant.
no is not a chemical reaction
Any reaction occur.
Adding a catalyst a chemical reaction can occur with a lower activation energy.
Thermodynamically favorable reaction will occur. Also, if the neutral element is higher in the activity series than the charged element, then the reaction will occur.