Chapter 1 describes the difference between observations, laws, and theories. Cite one example of a law from this chapter and explain why it is a law.
Law is a truth. It describes why and how nature works.
For example: Dalton’s Law of conservation of mass: It states that
“Matter is neither created nor destroyed in a chemical reaction or physical transformation.’It describes that the total mass of the reactant is always equal to the mass of the product of a chemical reaction.
For example: Formation of water molecule by reaction with hydrogen and oxygen gas.
Thus, the particles are rearranged during reaction. Total amount of matter is conserved during reaction due its indestructible properties. Therefore, it gives the idea how nature works and explains about the physical insight of the Law.