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Balance the given chemical reaction as per the instructions below. NaOH+HX2SOX4⟶NaX2SOX4+HX2O Make a list of the elements in the chemical equation.

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प्रश्न

Balance the given chemical reaction as per the instructions below.

\[\ce{NaOH + H2SO4 -> Na2SO4 + H2O}\]

Make a list of the elements in the chemical equation.

एक पंक्ति में उत्तर
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उत्तर

Elements in the chemical reaction are: Na, O, H and S.

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अध्याय 3: Chemical reactions and equations - Answer the following questions [पृष्ठ ५०]

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एससीईआरटी महाराष्ट्र Science and Technology Part 1 [English] Standard 10 Maharashtra State Board
अध्याय 3 Chemical reactions and equations
Answer the following questions | Q 1 (B) | पृष्ठ ५०

संबंधित प्रश्न

Balance the following equation:

\[\ce{Fe + O2 -> Fe2O3}\]


Balance the following equation:

\[\ce{Al2(SO4)3 + NaOH -> Al(OH)3 + Na2SO4}\]


Balance the following equation:

\[\ce{BaCl2 + H2SO4 -> BaSO4 + H2O}\]


Substitute formulae for names and balance the following equation:

Calcium carbonate reacts with hydrochloric acid to produce calcium chloride, water and carbon dioxide gas.


What do you understand by endothermic reactions?


Give one example of an exothermic reaction.


Balance the following equation. Also name the product formed. 

`"NaNO"_3  → "NaNO"_2  + "O"_2`  Name of product (s)


Write the balanced chemical equation of the following reaction. potassium bicarbonate + sulphuric acid → potassium sulphate + carbon dioxide + water


(a) Give only one suitable chemical test to identify the following gases.

  1. Ammonia
  2. Sulphur dioxide
  3. Hydrogen Chloride
  4. Chlorine
  5. Carbon Dioxide
  6. Oxygen
  7. Hydrogen

(b) Select a basic gas mentioned in Q.1 (a). How is the basic nature suspected?

(c)Select acidic gases from the gases mentioned in Q.1 (a). How is the acidic nature suspected?

(d) State the gas responsible for bleaching action.

(e)Which gas turn blue cobalt chloride paper light pink?

 


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:


Give a balanced equation for addition of iron to copper [II] sulphate solution. State the change in colour seen.


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.

2H2 + O2 → 2H2O


Balance the following simple equation:

Ca  +   H2O   →   Ca(OH)2   +   H2 


Write a balanced equation for the following word equation:

Potassium nitrate → Potassium nitrite + Oxygen


Write a balanced equation for the following word equation:

Nitrogen dioxide + Water + Oxygen → Nitric acid


With reference to a chemical equation state which of the statements 1 to 5 pertain to A or B.
A: Information provided by a chemical equation. 
B: Limitations of a chemical equation.

  1. The nature of the individual elements.
  2. The speed of the reaction.
  3. The state of matter in which the substance is present.
  4. The completion of the reaction.
  5. The direction of the reaction.

Write three steps of writing chemical equations with example?


The following reaction is an example of a `4"NH"_3("g") + "SO"_2 -> 4"NO"("g") + 6"H"_2"O"("g")`

  1. displacement reaction
  2. combination reaction
  3.  redox reaction
  4. neutralisation reaction

A dilute ferrous sulphate solution is gradually added to the beaker containing acidified permanganate solution. The light purple colour of the solution fades and finally disappears. Which of the following is the correct explanation for the observation?


To balance the following chemical equation the value of x and y should respectively be:

\[\ce{2NaOH + xAl_2O_3->yNaAlO_2 + H_2O}\]


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