Advertisements
Advertisements
प्रश्न
Name the fundamental law that is involved in every equation.
Advertisements
उत्तर
Fundamental laws which are involved in every equation:
A chemical equation consists of formulae of reactants connected by a plus sign (+) and arrow (→) followed by the formulae of products connected by the plus sign (+).
The sign of an arrow (→) is to read 'to form'. It also shows the direction in which the reaction is predominant.
The fundamental law followed by every equation is 'Law of Conservation of Mass'.
APPEARS IN
संबंधित प्रश्न
Correct and balance the following equation:
\[\ce{Ca + H2O -> CaOH + H}\]
Balance the following chemical equation:
\[\ce{C + CO2 -> CO}\]
The metal M reacts vigorously with water to form a solution S and a gas G. The solution S turns red litmus to blue whereas gas G, which is lighter than air, burns with a pop sound. Metal M has a low melting point and it is used as a coolant in nuclear reactors.
- What is metal M?
- What is solution S? Is it acidic or alkaline?
- What is gas G?
- Write a balanced chemical equation for the reaction which takes place when metal M reacts with water.
- Is this reaction exothermic or endothermic?
Name the type of chemical reaction shown by the following equation:
Fe + CuSO4 → FeSO4 +Cu
Balance the following equation:
H2O + Cl2 → HCl + O2
Write the balanced chemical equation of the following reaction.
aluminium + sodium hydroxide + water → sodium meta aluminate + hydrogen
Considering the relationship in the first pair, complete the second paie :
AgCI : White :: CuI2 : ___________
Write word equation for the following molecular equation:
CuCo3 → CuO + CO2 [g]
Word equation:
State the characteristics or indications occurring in the above reaction.
Balance the following simple equation:
Ca + H2O → Ca(OH)2 + H2
What is a reactant in a chemical equation?
