Oxygen is a naturally occurring element that can be found in abundance on Earth. It is present in the atmosphere as a gas, and can also be found in almost all living things, in water, and in the soil. Oxygen is also found in many minerals and rocks, making up nearly half of the Earth’s …
Presents of oxygen in nature – പ്രകൃതിയിലെ ഓക്സിജന്റെ സമ്മാനങ്ങൾ Read More »
Oxygen is an essential element for sustaining life on Earth. It is a colourless, odourless gas that makes up about 21 percent of the atmosphere. It is found in the air we breathe and is taken up by plants during photosynthesis. Animals use oxygen to metabolize food for energy and to produce carbon dioxide as …
Oxygen-The breath of life – ഓക്സിജൻ – ജീവന്റെ ശ്വാസം Read More »
Hydrogen is a clean-burning fuel that has the potential to reduce emissions of air pollutants and greenhouse gases. When used as a fuel, hydrogen reacts with oxygen in the air to form water and releases energy. This makes it an attractive alternative to traditional fossil fuels such as gasoline and diesel, which release harmful emissions …
Reaction between hydrogen and oxygen When hydrogen and oxygen molecules collide, they form a covalent bond to form a water molecule. The electrons from the hydrogen atoms are shared with the oxygen atoms to form the polar covalent bonds that make up a water molecule. The water molecule then separates from the two reactants and …
Collect the necessary materials. You will need a test tube, HCl, zinc granules, and a burner. Place a few granules of zinc into the test tube. Add about 10mL of HCl to the test tube. Place the test tube on the burner and heat the mixture until the zinc granules dissolve. After the zinc granules …
Hydrogen gas is a colourless, odourless, and tasteless gas. It is the most abundant element in the universe, making up about 75% of all matter. Hydrogen gas is highly flammable and is often used as a fuel in rockets and other forms of transport. It is also used to produce electricity and is a key …
Preparation of metal salts: Metal salts are used to prepare pigments, catalysts, and other inorganic compounds. Synthesis of organic compounds: Salts are used in various organic synthesis reactions such as Grignard reactions and Friedel-Crafts reactions. Formation of complexes: Salts are used to form complexes with transition metals. Electrolysis: Salt solutions are good conductors of electricity …
Salts Salts are ionic compounds that are made up of cations (positively charged ions) and anions (negatively charged ions). Common salts are sodium chloride, potassium chloride, magnesium chloride, and calcium chloride. Salts are used as preservatives, flavour enhancers, and in a variety of other food applications. They are also used for water softening and for …
A neutralization reaction is a chemical reaction in which an acid and a base react to form a salt and water. The general chemical equation for a neutralization reaction is: Acid + Base → Salt + Water Examples of neutralization reactions include: HCl + NaOH → NaCl + H2O H2SO4 + 2NaOH → Na2SO4 + …
Arrhenius’ theory is a theory of acids and bases put forth by Swedish chemist Svante Arrhenius in 1887. It states that an acid is a substance that increases the concentration of hydrogen ions (H+) in a solution, while a base is a substance that increases the concentration of hydroxide ions (OH−) in a solution. This …