Advertisements
Advertisements
प्रश्न
In certain reaction a change of state is observed i.e. solid to liquid, liquid to gas etc. – State the change of state of the products – to give the respective reactant.
\[\ce{C +2S -> CS2}\]
Advertisements
उत्तर
Carbon with sulphur
\[\ce{C[s] + 2S[s] ->\underset{\text{carbon disulphide}}{CS2[l]}}\]
The solid (products) changes to liquid (reactants) state.
APPEARS IN
संबंधित प्रश्न
Write a complete balanced equation for the following reaction:
\[\ce{Calcium (solid) + Water (liquid) -> Calcium hydroxide (solution) + Hydrogen (gas)}\]
Balance the following equation:
\[\ce{Mg(OH)2 + HCl -> MgCl2 + H2O}\]
Potassium chlorate (KClO3) on heating forms potassium chloride and oxygen. Write a balanced equation for this reaction and indicate the evolution of gas.
Write your observation for the following chemical reaction and name the product formed :
When water is added to quick lime?
Balance the following equation:
S + H2SO4 → SO2 + H2O
\[\ce{MnO2 + 4HCl -> MnCl2 + 2H2O + Cl2}\]
0.02 moles of pure MnO2 is heated strongly with conc. HCl. Calculate moles of salt formed.
Write word equation for the following molecular equation:
\[\ce{CuSO4 + 2NaOH -> Na2SO4 + Cu(OH)2↓}\]
Word equation:
State the colour of the products.
What is meant by ‘reactants’ and ‘products’ in a chemical equation?
Give an example of a chemical equation in which two reactants form:
two product
Write scientific reason.
Adding zinc particles to a solution of copper sulphate makes the blue solution colorless.
