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Tetraoxosulphate (VI) acid is highly corrosive and causes damage by tissue dehydration and heat production. Dark-brownish colored burns are usually observed

A salt that contains water of crystallization is called a hydrated salt. The water molecules attached to the salt are called water of crystallization. When a hydrated salt is exposed to air, it can lose its water of crystallization through evaporation. This process is called efflorescence.

First, write a balanced chemical equation or the reaction: Na\(_2\)CO\(_3\) + 2HCl → 2NaCl + H\(_2\)O + CO\(_2\) From the balanced equation, we can deduce that N\(_A\) = 2 , N\(_B\) = 1 We were also given from the question, C\(_A\) = ? C\(_B\) = 0.2 mol/dm\(^3\) V\(_A\) = 20cm\(^3\) V\(_B\) = 25 cm\(^3\) Using the relationship, \(\frac{C_A V_A}{C_B V_B}\) = \(\frac{N_A}{N_B}\) C\(_A\) = \(\frac{C_B V_B N_A}{V_A N_B}\) C\(_A\) = \(\frac{0.2 X 25 X 2}{20 X 1}\) = 0.5 mol/dm\(^3\)

Lead compounds, Organophosphorous compounds, and Uranium are considered as sources of pollution to the environment while Silicate minerals such as quartz, beryl, feldspar etc causes little impactation on the environment in terms of pollution.

The property that makes alcohol soluble in water is hydrogen bonding, which occurs between the hydroxyl group in alcohol and water molecules. The hydroxyl group in alcohol is hydrophilic, meaning it's "water-loving". This group forms hydrogen bonds with water molecules, which makes alcohol soluble in water.

Steam changes the color of anhydrous cobalt (II) chloride from blue to pink.

In the brown ring test, nitric oxide (NO) is produced when acidified iron (II) sulphate reacts with dilute nitric acid. The nitric oxide then reacts with iron (II) to form a complex ion, which creates a brown ring at the junction of the two liquids.

Ethanol may be produced by either synthetic chemical method or by fermentation of carbohydrate (Starch).

The reaction of aluminum chloride, AlCl\(_3\) and sodium hydroxide (NaOH) produces a white precipitate of aluminum hydroxide Al(OH)\(_3\).

Catenation is the ability of an atom to form chains and rings by sharing electrons with other atoms of the same element. Carbon has a high tendency to catenate because of the strength of its C–C bonds. Carbon's least diffuse valence shell p orbital allows it to form longer p-p sigma bonded chains of atoms than heavier elements.

When an alkene reacts with hydrogen in the presence of a catalyst, the reaction is called hydrogenation. Hydrogenation is an addition reaction that occurs when hydrogen gas is added to an alkene's double bond in the presence of a metal catalyst. The reaction results in the formation of an alkane, which is a saturated compound. The reaction is also known as catalytic hydrogenation because a catalyst is required for it to occur. The catalyst lowers the activation energy of the reactants, which increases the reaction rate.

The five structural isomers of C\(_6\)H\(_{14}\), also known as hexane, are: n-hexane: Has only primary and secondary carbon atoms 2-methylpentane: Has a single tertiary carbon atom 3-methylpentane: Has a tertiary carbon atom 2,2-dimethylbutane: Has two tertiary carbon atoms 2,3-dimethylbutane: Has two tertiary carbon atoms.

A macromolecule is a very large molecule, usually with a diameter of 100 to 10,000 angstroms (10−5 to 10−3 mm). Nylon is a synthetic macromolecule that's made up of repeating subunits called monomers. It's created through a condensation polymerization reaction between adipic acid and hexamethylene diamine. Polyethylene is a synthetic polymer, which means it's made by scientists and engineers from petroleum oil. Creatine is a non-protein compound that is derived from amino acids, and is produced in the body by the liver, kidneys, and pancreas. It is also found in protein-rich foods like meat, fish, and milk. Hemoglobin is a natural organic(natural) macromolecule.

Ordinary glass is made from sand(silica), limestone(CaCO\(_3\) and soda ash, Na\(_2\)CO\(_3\).

When ethyne is passed through an ammoniacal solution of copper(I) chloride, a red-brown precipitate of copper(I) acetylide is produced. Terminal alkynes also react to form a red-brown precipitate