Basic chemistry (formulas): Identify the correct chemical formula for water. Select the scientifically accepted molecular formula of water used in chemistry and everyday science. Choose the correct formula.
General Knowledge
General Science
Difficulty: Easy
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Answer
Correct Answer: H₂O
Explanation
Given data
- Ask: Write the chemical formula of water.
- Context: Basic chemistry and everyday science knowledge.
Concept/Approach A water molecule consists of two hydrogen atoms covalently bonded to one oxygen atom. Its molecular formula is H2O.
Step-by-step clarification • H2O: correct molecular composition (2 H, 1 O). • H2O2: hydrogen peroxide (a different compound). • HO: an unrealistically simplified radical notation, not the stable molecule. • H3O+: hydronium ion, present in acidic solutions, not neutral water.
Final Answer H₂O