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Complete and Balance the Following Equation: Na2o + H2o → - Science

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प्रश्न

Complete and balance the following equation:

Na2O  +  H2O →

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उत्तर

Na2O(s) + H2O(l) 2NaOH (aq)

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  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 3: Metals and Non-metals - Exercise 1 [पृष्ठ १३३]

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लखमीर सिंह Chemistry (Science) [English] Class 10
पाठ 3 Metals and Non-metals
Exercise 1 | Q 34.2 | पृष्ठ १३३

संबंधित प्रश्‍न

_________ solution is blue in colour.
(a) CuSO4
(b) FeSO4
(c) ZnSO4
(d) Al2(SO4)3


Why is sodium kept immersed in kerosene oil?


Give reasons why copper is used to make hot water tanks and not steel (an alloy of iron).


A solution of _________________ in water is green in colour.

(a) CuSO4
(b) FeSO4
(c) ZnSO4
(d) Al2(SO4)3


Why are metals called electropositive elements whereas non-metals are called electronegative elements?


What changes in the colour of iron nails and copper sulphate solution do you observe after keeping the iron nails dipped in copper sulphate solution for about 30 minutes?


Name the metal which has been placed at the bottom of the reactivity series.


Explain why, the surface of some metals acquires a dull appearance when exposed to air for a long time.


Complete and balance the following equation:


Fill in the following blank with suitable word:

The white powder formed when magnesium ribbon burns in oxygen is of ....................


What type of oxides are formed when metals combine with oxygen? Explain with the help of an example.


 What happens when magnesium reacts with very dilute nitric acid? Write an equation for the reaction involved.


Name two metals which cannot displace hydrogen from dilute acids.


Write the chemical equation of the reaction which takes place when iron reacts with dilute sulphuric acid. What happens when the gas produced is ignited with a burning matchstick?


Which non-metal has been placed in the reactivity series of metals?


Out of the following oxides, the amphoteric oxide is:
(a) Fe2O3
(b) Al2O3
(c) P2O5
(d) N2O


CuSO4(aq) + Fe(s) → FeSO4(aq) + Cu(s)

FeSO4(aq) + Zn(s) → ZnSO4(aq) + Fe(s)

On the basis of the above reactions, indicate which is most reactive and which is least reactive metal out of zinc, copper and iron.


What is the cause of chemical bonding (or chemical combination) of atoms of elements?


Which property of metals is used for making bells and strings of musical instruments like Sitar and Violin?


An element X is soft and can be cut with a knife. This is very reactive to air and cannot be kept open in the air. It reacts vigorously with water. Identify the element from the following.


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