Fill in the following blank with a suitable word: The amount of heat produced by burning a unit mass of a fuel completely is known as its ................ value.
Fill in the following blanks with suitable words :
(a) Chemical equations are balanced to satisfy the law of ..........
(b) A solution made in water in known as an .............. solution and indicated by the symbol .......
Fill in the blanks with suitable words :
An acid is a compound which when dissolved in water forms hydronium ions as the only ________ ions.
A base is a compound which is soluble in water contains ________ ions. A base reacts with an acid to form a ________ and water only. This type of reaction is known as ________