what type of acid is the first one?
It is a mineral acid composed of the elements sulfur, oxygen and hydrogen, with molecular formula HSO.
Sulfuric acid
Sulfuric acid (American spelling) or sulphuric acid (British spelling), also known as oil of vitriol, is a mineral acid composed of the elements sulfur, oxygen and hydrogen, with molecular formula HSO. It is a colourless, odourless, and viscous liquid that is soluble in water and is synthesized in reactions that are highly exothermic.
most common cause of death in burn patients Infections being the most common  pneumonia, cellulitis, urinary tract infections and respiratory failure. what is burn? A burn is a type of injury to skin, or other tissues, caused by heat, cold, electricity, chemicals, friction, or radiation. what are the indications? Severe burns may indicate discomfort or complain of feeling pressure rather than pain, there are superficial burns, full-thickness burns. how is it caused by chemical? Chemicals like strong base or a strong acid can cause deep burns. can you name such chemicals? Sulfuric acid, sodium hypochlorite, halogenated hydrocarbons, hydrofluoric acid, formic acid.
wiki:19630936
Sulfuric acid [SEP] Introduction
Sulfuric acid (American spelling) or sulphuric acid (British spelling), also known as oil of vitriol, is a mineral acid composed of the elements sulfur, oxygen and hydrogen, with molecular formula HSO. It is a colourless, odourless, and viscous liquid that is soluble in water and is synthesized in reactions that are highly exothermic. The acid's corrosiveness towards other materials can be mainly described due to its strong acidic nature, and if at a high concentration its dehydrating alongside oxidizing properties. It is also hygroscopic, readily absorbing water vapor from the air. Upon contact, sulfuric acid can cause severe chemical burns and even secondary thermal burns due to dehydration; it is very dangerous even at lower concentrations.