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प्रश्न
Show with the help of diagram of electronic configuration how the following compound is formed from the constituent atoms.
Water
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उत्तर
Step 1: Write the symbols of the radicals.
H O
Step 2: Write the valency below the respective radical.
H O
1 2
Step 3: Cross-multiply symbols of radicals with their respective valency.
Step 4: Write down the chemical formula of the compound.
संबंधित प्रश्न
How do the following help in bringing about a chemical change?
pressure.
Write true or false.
A chemical equation gives only qualitative information of a chemical reaction.
Show with the help of diagram of electronic configuration how the following compound is formed from the constituent atoms.
Hydrogen chloride
When hydrogen burns in oxygen, water is formed; when electricity is passed through water, hydrogen and oxygen are given out. Name the type of chemical change involved in the two cases.
Write your observation and a balanced equation in the case of the following substances being heated.
Copper carbonate.
Explain with the help of balanced equations, how precipitation reactions are used for identifying the positive radicals in three different salts, each having a different cation [positive ion].
What happens when cane sugar is strongly heated? Mention any two changes in it.
Burning of paper is a ______ change.
Burning of paper is the best example of ______ change.
Heat may evolve or be absorbed during a ______ change.
