Learning science with fact
Sodium is a very reactive metal. It is kept in kerosene to prevent it from coming in contact with oxygen and moisture. If this happens, it will react with the moisture present in air and form sodium hydroxide. This is a strongly exothermic reaction, and lot of heat is generated
Nitrous oxide (N2O), more commonly referred to as laughing gas, is used as a local sedation method, according to the California Dental Association (CDA). It is colorless and odorless. Nitrous oxide is effective as a sedative because it relaxes patients with the pleasurable feelings it emits
Marsh gas, swamp gas and bog gas are common names for biogas which forms in wetlands, whose principal component is methane with hydrogen sulfide and carbon dioxide as minor compositions, produced naturally within some geographical marshes, swamps, and bogs
que-Why is methane also known as marsh gas?
Methane is called a marsh gas because it is formed by methanogenic organisms that can be found is marshes (thus concentrations can be found in marches). Marsh is an area of low-lying land which is flooded in wet seasons or at high tide, and typically remains waterlogged at all times.Liquefied Petroleum Gas or LPG (also called Autogas) It is extracted from crude oil and natural gas. The main composition of LPG are hydrocarbons containing three or four carbon atoms. The normal components of LPG thus, are propane (C3H8) and butane (C4H10). Small concentrations of other hydrocarbons may also be present.
que-What is the difference between CNG and LPG?
CNG is Compressed Natural Gas, which is mainly methane compressed at a pressure of 200 to 248 bars. LPG is Liquefied Petroleum Gas, a mixture of propane and butane liquefied at 15 °C and a pressure of 1.7 - 7.5 bar-CNG is cheaper and cleaner, but LPG has a higher calorific value.
Potassium permanganate is a point-of-entry treatment method that oxidizes dissolved iron, manganese, and hydrogen sulfide into solid particles that are filtered out of the water. It can also be used to control iron bacteria growth in wells.
que-Potassium Permanganate is used for purifying drinking water, because
Potassium permanganate (KMnO4) oxidizes dissolved iron, manganese, and hydrogen sulfide into solid particles that are filtered out of the water.
The major greenhouse gas is of course carbon dioxide (CO2) and nearly all CO2 comes from fossil fuels and land-use change. But methane (CH4) and nitrous oxide (N2O), which mostly come from agriculture and waste, are also significant GHGs and shouldn't be discounted.
In order, the most abundant greenhouse gases in Earth's atmosphere are:
Carbon monoxide (CO) is only a very weak direct greenhouse gas, but has important indirect effects on global warming. Carbon monoxide reacts with hydroxyl (OH) radicals in the atmosphere, reducing their abundance.
Gases absorb / emit infrared light if they vibrate at the frequency of the light, and if its vibration has a dipole moment that affects the electric field. O2 and N2 are not greenhouse gases. All molecules of three or more atoms are infrared active
Washing soda is not the same as baking soda. They are two different compounds and are used for completely different purposes. Washing soda, aka sodium carbonate (or soda ash), is a natural cleaner and a powerful water softener. It's very basic with a pH of 11. Sodium carbonate (also known as washing soda or soda ash), Na2CO3 is a sodium salt of carbonic acid.
Sodium bicarbonate or sodium hydrogen carbonate is the chemical compound with the formula NaHCO3. Sodium bicarbonate is a white solid that is crystalline but often appears as a fine powder. Since it has long been known and is widely used, the salt has many related names such as baking soda, bread soda, cooking soda, and bicarbonate of soda.
