Advertisements
Advertisements
प्रश्न
Write complete balanced equation for the following reaction:
Calcium (solid) + water (liquid) 
Calcium Hydroxide (solution) + Hydrogen (gas)
उत्तर
Ca (s) + 2H2O (l) → Ca(OH)2 (aq) + H2 (g)
APPEARS IN
संबंधित प्रश्न
Balance the following equation and add state symbols:
Zn + HCI → ZnCI2 + H2
With the help of an appropriate example, justify that some of the chemical reactions are determined by Change in colour
Give chemical equation for the reaction involved in the above case.
The chemical reaction between two substances is characterised by a change in colour from orange to green. These two substances are most likely to be:
(a) potassium dichromate solution and sulphur dioxide
(b) potassium permanganate solution and sulphur dioxide
(c) potassium permanganate solution and lemon juice
(d) potassium dichromate solution and carbon dioxide.
Write symbolic representation for the following word equation and balance them :
Carbon + Oxygen → Carbon dioxide.
Balance the following equation. Also name the product formed.
` "H"_2"O"_2 → "H" _2 "O" + "O"_2`
Write the chemical equation for the following word equation and balance them.
Calcium oxide + Carbon dioxide → Calcium carbonate
Balance the following equation:
Zn + KOH → K2ZnO2 + H2
Balance the following equation:
PbO + NH3 → Pb + H2O + N2
\[\ce{2KClO3->[MnO2] 2KCl + 3O2[g] - is a balanced equation.}\]
Give a reason why the above equation is balanced.
Give the characteristic tests for the following gases :
- CO2
- SO2
- O2
- H2
