Define a chemical reaction and write the conditions necessary for a chemical change with one example of each.
Answers
Answer:
a process that involves rearrangement of the molecular or ionic structure of a substance, as distinct from a change in physical form or a nuclear reaction.
Some of the major factors that play role in the chemical reaction are: surface area, catalyst, pressure, heat and light.
Explanation:
Answer:
chemical reaction
It is a process that involves rearrangement of the molecular or ionic structure of a substance, as distinct from a change in physical form or a nuclear reaction.
Conditions necessary for a chemical change...
So, the three conditions for a chemical reaction to occur are:
- Temperature should be above absolute zero.
- Chemical reactants must be in close, proximate,
physical contact
- The reaction must have negatie free energy
(exergonic) and the system must provide it
sufficient energy to overcome the activation
energy barrier.
- It should be molecular
- It should exist in nature
Some of the major factors that play role in the chemical reaction are: surface area, catalyst, pressure, heat and light.
Examples of chemical change..
Burning wood.
Souring milk.
Combining base and acid.
Digesting food.
Cooking an egg.
Making caramel from heating sugar.
Baking a cake.
Rusting of iron.