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प्रश्न
What do the following symbol stand for?
2H2
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उत्तर
2H2 stands for Two molecules of hydrogen.
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संबंधित प्रश्न
Correct and balance the following equation:
N + H 
NH3
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Balance the following equation .
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Write the equation.
Check whether it is balanced, if not balance it.
Find the weights of reactants and products.
State the law which this equation satisfies.
Match column A with column B.
| Column A | Column B |
| (a) Blue salt changes to white and then black | (i) Ammonium dichromate |
| (b) Orange coloured compound changes to green. | (ii) Iodine |
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| (d) White to yellow when hot and white when cold. | (iv) Copper sulphate |
| (e) Violet solid changes to violet vapours. | (v) Red Lead |
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What is the colour of this precipitate? Name the compound precipitated.
Balance the following simple equation:
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