Advertisements
Advertisements
प्रश्न
Write word equation for the following molecular equation:
\[\ce{CaCO3 + 2HCl ->[\triangle] CaCl2 + H2O + CO2 [g]}\]
Word equation:
State which characteristic does [g] in the above reaction indicate. The word equation of:
Advertisements
उत्तर
\[\ce{CaCO3 + 2HCl ->[\triangle] CaCl2 + H2O + CO2 [g]}\] is
\[\ce{Calcium carbonate + Hydrochloric ->[\triangle] Calcium chloride + water + carbon dioxide}\]
Indication –
Evolution of gas i.e. Carbon dioxide.
APPEARS IN
संबंधित प्रश्न
Methyl orange is used as an indicator. It shows colour change in acid, base and neutral substance. Tabulate your result as follows:
| Indicator | Colour change | Inference |
| Methyl Orange | No change | ...................... |
| .................... | Acid | |
| Yellow | ....................... |
What does the symbol (aq) represent in a chemical equation?
How will you indicate a solution made in water in a chemical equation?
Write complete balanced equation for the following reaction:
Calcium (solid) + water (liquid) 
Calcium Hydroxide (solution) + Hydrogen (gas)
State one characteristic of the chemical reaction which takes place when wax is burned in the form of a candle?
Which of the following is not an endothermic reaction?
(a) CaCO3 → CaO + CO2
(b) 2H2O →2H2 + O2
(c) 6CO2 + 6H2O → C6H12O6 + 6O2
(d) C6H12O6 + 6O2 → 6CO2 + 6H2O
Write the balanced chemical equations of the following reactions.
chlorine + sulphur dioxide + water → sulphuric acid + hydrogen chloride
Give word equation for the following chemical reaction and give the names of the product formed.
NH3 + HCl→ NH4Cl
Write a balanced equation for the following word equation:
Lead dioxide [lead (IV) oxide] → Lead monoxide + Oxygen
Balance the given chemical reaction as per the instructions below.
\[\ce{NaOH + H2SO4 -> Na2SO4 + H2O}\]
Write the number of atoms of various elements in the reactants and products.
