Advertisements
Advertisements
प्रश्न
Underline the compound in the equation given below, it is incorrectly balanced and write the correct balancing for the same.
2H2O + 2Cl2 → 2HCl + O2
Advertisements
उत्तर
2H2O + 2Cl2 → 2HCl + O2
Correct balance – 4HCl
2H2O + 2Cl2 → 4HCl + O2
APPEARS IN
संबंधित प्रश्न
On what basis is a chemical equation balanced?
State whether the following statement is true or false:
A chemical equation can be balanced easily by altering the formula of a reactant or product.
When hydrogen is passed over copper oxide, copper and steam are formed. Write a balanced equation for this reaction and state which of the chemicals are non-metals.
Write balanced chemical equation from the following information:
An aqueous calcium hydroxide solution (lime water) reacts with carbon dioxide gas to produce a solid calcium carbonate precipitate and water.
Write any two observations in an activity which may suggest that a chemical reaction has taken place. Give an example in support of your answer.
Balance the following equation. Also name the product formed.
PbCO3 → PbO +CO2
Grills of doors and windows are always painted before they are used.
A chemical reaction is generally accompanied by certain external indications or characteristics. These include – change of – (a) colour (b) state (c) smell (d) evolution of gas (e) formation of precipitate (f) evolution or absorption of heat. With reference to change of colour – state the change in colour seen when the following are heated – mercury [II] oxide.
Give word equation for the following chemical reaction and give the names of the product formed.
NH3 + HCl→ NH4Cl
Reema took 5ml of Lead Nitrate solution in a beaker and added approximately 4ml of Potassium Iodide solution to it. What would she observe?
