Before a chemical reaction happens, what should happen is:
reagent contact,
chemical affinity,
favorable collisions, and
activation energy.
Explanation:
Contact between reagents: In order for the reactant molecules to collide with each other, they must come into contact. For example, sodium is a metal element that reacts with oxygen, oxidizing in minutes when in contact with air.
chemical Affinity: This property refers to the ability of one substance to react with another, because even if two or more substances are brought into contact but there is no affinity between them, the reaction will not occur
favorable collisions: For a chemical reaction to occur, the molecules of the reagents that came in contact must effectively collide. The greater the number of favorable collisions, the faster the chemical reaction will be.
Activation Energy: For collisions to be favorable and result in a chemical reaction, the reagents must have a minimum energy, which is the activation energy. Activation energy is required for the formation of the activated complex, that is, an intermediate structure between reactants and products, where reactant bonds are being weakened and product bonds are being formed.
Science was needed to make technology and technology helps make scientific advancements. Ex- looking at a blood cell through a microscope to find s cure for a virus.
Ex- someone had to build a telescope using science to see the stars.
A way we can reduce disadvantages of human made materials is simply by finding new uses for them such as when plastic is molded and used for a container of a liquid.