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प्रश्न
Write the symbols for the following elements and classify them as solid, liquid and gas. Aluminum, Carbon, Chlorine, Mercury, Hydrogen and Helium
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उत्तर
| Element | Symbol | Classification |
| Aluminum | Al | Solid |
| Carbon | C | Solid |
| Chlorine | Cl | Gas |
| Mercury | Hg | Liquid |
| Hydrogen | H | Gas |
| Helium | He | Gas |
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संबंधित प्रश्न
The symbol of a metal element which is used in making thermometers is :
In the chemical word equation – Zinc + Sulphuric acid → Zinc sulphate + Hydrogen
The molecular equation is :
Zn + H2SO4 → ZnSO4 + H2[g].
State what [g] represents.
Give the symbol of the following element:
Chlorine [chloride]
Give the formula of the following acid:
Nitric
Give the formula of the following gas:
Nitrogen dioxide
Define the term ‘valency’.
State whether the following ion or radical given below of a non-metallic element exhibits valency: 1–, 2– or 3–. (write the ion or radical with the correct valency).
Oxide
State why the molecular formula of zinc carbonate is ZnCO3 .
What does the symbol '(aq.)' present in a chemical equation, mean?
The pictorial symbol for water given by the alchemists was
