Question

Describe two chemical reactions that you encounter on a regular basis.

Answer 1

A. Chemical reaction-1(Photosynthesis)

Plants apply a chemical reaction called photosynthesis to convert carbon dioxide and water into food (glucose) and oxygen. It's one of the most common everyday chemical reactions and also one of the most important, since this is how plants produce food for themselves and animals and convert carbon dioxide into oxygen.

6 CO2 + 6 H2O + light → C6H12O6 + 6 O2Chemical reaction

The reactions of photosynthesis can be categorized as light-dependent reactions and dark reactions.

Chlorophyll is a key molecule for photosynthesis, though other cartenoid pigments also participate. There are four (4) types of chlorophyll: a, b, c, and d. Although we normally think of plants as having chlorophyll and performing photosynthesis, many microorganisms use this molecule, including some prokaryotic cells. In plants, chlorophyll is found in a special structure, which is called a chloroplast.

In plants, photosynthesis is used to convert light energy from sunlight intochemical energy (glucose). Carbon dioxide, water, and light are used to make glucose, oxygen, and water.

Photosynthesis is not a single chemical reaction, but rather a set of chemical reactions. The overall reaction is:

6CO2 + 6H2O + light → C6H12O6 + 6O2

B. Chemical reaction-2(Acid-Base reaction)

Whenever you combine an acid (e.g., vinegar, lemon juice, sulfuric acid, muriatic acid) with a base (e.g., baking soda, soap, ammonia, acetone), you are performing an acid-base reaction. These reaction neutralize the acid and base to yield salt and water.

Sodium chloride is not the only salt that may be formed. For example, here is the chemical equation for an acid-base reaction that produces potassium chloride, a common table salt

HCl + KOH → KCl + H2O