QUIZ IN STOICHIOMETRY ESSAY, Quizzes of Chemistry

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1. Describe the domains of chemistry and give example of each. Answer: Chemistry has three domains known as microscopic domain, macroscopic domain, and symbolic domain. Most subject of microscopic domain such as atoms and molecules are too small to be seen even with standard microscopes and often must be pictured in the mind (ex, Bacteria and Viruses). Macroscopic domain is large enough to be sensed directly by human sight or touch (ex, The food we eat). The symbolic domain contains the specialized language used to represent components of the microscopic and macroscopic domains (ex, Chemical formulas and chemical equations). 2. In your own understanding, what is the difference between an atom and a molecule? Answer: In my own understanding, atom is a single neutral particle that retains all of the chemical properties of an element while molecule is a neutral particle made of two or more atoms bonded together. 3. Differentiate ions and isotopes. Answer: An ton is an atom that gained or lost electrons and has a negative or positive charge while isotopes are atom that have the same numbers of protons but different numbers of neutrons. 4. In your own words, discuss the types of chemical bonding. Answer: In chemistry, we have two types of chemical bonding which are the ionic bond and the covalent bond. Let us first discuss the ionic bonding, this type of chemical bonding involves a transfer of an electron thus one atom gains an electron while one atom loses an electron. For