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प्रश्न
Is Burning of natural gas an endothermic reaction or an exothermic reaction?
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उत्तर
Burning of natural gas: Exothermic reaction
Burning of natural gas releases a huge amount of heat energy.
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संबंधित प्रश्न
Complete and balance the following equation:
NaOH + ............ 
Na2 SO4 + H2O
Balance the given equation:
H2O2 
H2O + O2
Balance the given equation:
NH3 + CuO 
Cu +N2 +H2O
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.
State one characteristic of the chemical reaction which takes place when quicklime is treated with water
You are given the solution of lead nitrate. In order to obtain a yellow precipitate you should mix with it a solution of:
(a) potassium chloride
(b) potassium nitride
(c) potassium sulphide
(d) potassium iodide
Write the balanced equation for the following chemical reaction.
\[\ce{Barium chloride + Aluminium sulphate -> Barium sulphate + Aluminium chloride}\]
Balance the following chemical equation :
FeS + HCl → FeCl2 + H2S
Balance the following equation .
N2 + O2 → NO
Balance the following equation:
S + H2SO4 → SO2 + H2O
Name the fundamental law that is involved in every equation.
What is the valency of :
carbon in CH4
When a potassium iodide solution is added to a solution of lead (II) nitrate in a test tube, a precipitate is formed.
Write the balanced chemical equation for this reaction.
Write word equation for the following molecular equation:
\[\ce{CuSO4 + 2NaOH -> Na2SO4 + Cu(OH)2↓}\]
Word equation:
State the colour of the products.
Representation of the results of a chemical change – is a chemical equation.
For the equation: FeCl3 + 3NH4OH 3NH4Cl + Fe(OH)3 ↓
Answer the following:
What is the indications of the arrow between the reactants and the products and of the arrow pointing downwards at the end.
Balance the following simple equation:
C + O2 → CO
Balance the following simple equation:
Fe + Cl2 → FeCl3
Balance the following simple equation:
FeCl2 + Cl2 → FeCl3
The following reaction is an example of a `4"NH"_3("g") + "SO"_2 -> 4"NO"("g") + 6"H"_2"O"("g")`
- displacement reaction
- combination reaction
- redox reaction
- neutralisation reaction
