Question detail
From a diagram showing a molecule of ammonia (NH3), identify its molecular formula.
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
Question
Type
exam_style
Style
Topic
Chemical bonds, ionic, covalent and metallic
Question
From a diagram showing a molecule of ammonia (NH3), identify its molecular formula.
Answer
The molecular formula for ammonia is NH3, which shows that it contains one nitrogen atom and three hydrogen atoms.
Explanation
This question assesses the student's ability to analyze a diagram and extract the molecular formula, linking it to the concept of covalent bonding in small molecules.
Common mistake
Incorrect Molecular Formula Deduction
Students often confuse the number of atoms in a molecule, leading to incorrect molecular formulas.
Carefully count the atoms of each element in the model or diagram to ensure the correct molecular formula is deduced.
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