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प्रश्न
What does the symbol '(aq.)' present in a chemical equation, mean?
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उत्तर
'(aq.)' represents for a solution in water (aqua).
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संबंधित प्रश्न
Fill in the blank:
Dalton used symbol _____ for oxygen and _____ for hydrogen.
Match the symbols of non-metallic elements with their correct combining power or capacity.
(a) O
(b) S
(c) Cl
Combining power or capacity A : 3; B : 2; C : 1. (negative valencies)
Match the symbols of – radicals – with their correct combining power or capacity, (valency).
(a) OH
(b) So4
(c) No3
(d) Co3
Combining power or capacity – A : 3; B : 2; C : 1. (negative valencies)
State the type of element for the following:
Oxygen
State the type of element for the following:
Sulphur
State the type of element for the following:
Zinc
Give three reasons why – carbon dioxide is considered a compound, while carbon – an element.
Write the chemical formula of the following:
zinc oxide
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).
Iodide
Name three metals whose symbols are derived: from their Latin names.
