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Question
Show with the help of diagram of electronic configuration how the following compound is formed from the constituent atoms.
Water
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Solution
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.
RELATED QUESTIONS
| Reactants | Products | Type of chemical reaction |
| BaCl2(aq) + ZnSO4(aq) | H2CO3(aq) | Displacement |
| 2AgCl(s) | FeSO4(aq) + Cu(s) | Combination |
| CuSO4(aq) + Fe(s) | BaSO4↓ + ZnCl2(aq) | Decomposition |
| H2O(l) + CO2(g) | 2Ag(s) + Cl2(g) | Double displacement |
Write the chemical reaction where the following changes are observed.
Gas is evolved
What is a chemical change? Give two examples of chemical change?
Distinguish by dilute sulphuric acid.
Sodium Sulphite and sodium carbonate?
State the following reaction represent oxidation or reduction.
\[\ce{Ag->Ag+}\]
State whether the following reaction is oxidation or reduction.
\[\ce{Na->Na+}\]
Differentiate between the following:
Neutralization reaction and a precipitation reaction.
The chemical change is ______.
Write some materials prepared by chemical changes.
Write five changes in the characteristics of a substance that can take place during a chemical change.
