Cyberlink Uchiha Chemistry

Examples for Chemical Reaction in Everyday Life Chemical reactions can happen anywhere around us, not just in the laboratory. Matter interacts to form new products through a process called chemical reactions or chemical changes. Every time we cook or are cleaning, it is also a chemical in action. Our bodies live and grow thanks to chemical reactions. There are reactions when we take drugs, light a match, and take a breath. Here are 10 examples of chemical reactions in everyday life. This is just a small example, because we see and experience hundreds of thousands or even more chemical reactions every day. 1.    Burning Every time we light a match, burn a candle, make a fire, or light a grill, we will see a burning reaction. Combustion combines energetic molecules with oxygen to produce carbon dioxide and water. For example, propane combustion reactions, found in gas grills and some fireplaces, are: C 3 H 8 + 5O 2 → 4H 2 O + 3CO 2 + Energy 2.    C...

Ø Substance              : A type of matter with a fixed composition. Ø Element                  : If all the atoms in a substance has the same identity it becomes {blank}. Ø Compound      : A substance in which the atoms of 2 or more elements are combined. Ø Heterogeneous Mixture   : Mixture in which different materials can easily be distinguished. Ø Homogeneous Mixture      : Contains 2 or more gases, liquids, or solids substances blended evenly. Ø Solution                  : Homogeneous mixture with particles so small that they cannot be seen with a microscope. Ø Colloid                     : Type of mixture with pa...

Double Bubble Map for Oxygen and Sulfur Oxygen Oxygen is by far the most abundant element in Earth’s crust, constituting about 46 percent of its mass. In addition, the atmosphere contains about 21 percent molecular oxygen by volume (23 percent by mass). Like nitrogen, oxygen in the free state is a diatomic molecule (O 2 ). In the laboratory, oxygen gas can be obtained by heating potassium chlorate. 2KClO 3 ( s ) > 2KCl( s ) + 3O 2 ( g ) The reaction is usually catalyzed by manganese(IV) dioxide, MnO 2 . Pure oxygen gas can be prepared by electrolyzing water. Industrially, oxygen gas is prepared by the fractional distillation of liquefied air. Oxygen gas is colorless and odorless. Oxygen is a building block of practically all biomolecules, accounting for about a fourth of the atoms in living matter. Molecular oxygen is the essential oxidant in the metabolic breakdown of food molecules. Without it, a human being cannot survive for more than a few minutes. Properties of Dia...

Teacher: Good morning students Students: Good morning, Sir Teacher: Well, can you guess. What this stuff I bring? Students: No Sir, we don't know Teacher: It's call hydrochloride acid solution Students: Ooohhh Teacher: Anybody know characteristic about hydrochloride acid solution from the way you see it? Ei: I will Teacher: Yes, please Ei: It has a clear colour, si Teacher: Yeah, that's right, anybody else? Bi: Hydrochloride acid solution is one of strong acid Teacher: Exactly Ci: But Sir, why hydrochloride acid solution is strong acid? Teacher: Nice question well, that's hydrochloride acid solution has mixed with two element. Which are hydrogen and chlorine have strong ion bond. So, that's can make a strong power to create a strong bond. Here, do you see the symbol? Students: Yes Sir Teacher: So anybody can analyze the meaning of this symbol? Bi: Can I Sir? Teacher: Yes, please Bi: That's symbol has mean corrosive. The che...

What is Acid Rain and What Causes It? “Acid rain” is a broad term used to describe several ways that acids fall out of the atmosphere. A more precise term is acid deposition, which has two parts: wet and dry. "Acid rain" is a popular term referring to the deposition of a mixture from wet (rain, snow, sleet, fog, cloudwater, and dew) and dry (acidifying particles and gases) acidic components.  Distilled water , once  carbon dioxide  is removed, has a neutral pH of 7. Liquids with a pH less than 7 are acidic, and those with a  pH  greater than 7 are alkaline. "Clean" or unpolluted rain has an acidic pH, but usually no lower than 5.7, because carbon dioxide and water in the air react together to form  carbonic acid , a weak acid according to the following reaction: H 2 O  (l) +  C O 2  (g) ⇌   H 2 C O 3  (aq) Carbonic acid then can ionize in water forming low concentrations of  hydronium  and  carbonate ...