Practice Molecules Of Compounds (3.3.2) - Atoms and Molecules

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9 questions

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6 sample questions

Question 1.
Define a molecule.
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Think about what makes up a compound.
Question 2.
What does atomicity represent?
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Consider how many atoms combine to form a molecule.
3Question 3.
What is a molecule?
- A single atom
- A combination of different compounds
- A group of two or more atoms
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Remember the definition and think of examples.
4Question 4.
True or False: A compound's properties are the same as its constituent elements.
- True
- False
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Consider how compounds are made distinct.
Question 5.
Given the atomic masses: hydrogen = 1u, nitrogen = 14u, calculate the molecular mass of ammonia (NH3).
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Add together the contributions from each atom in NH3.
Question 6.
Explain how the law of conservation of mass applies when forming a chemical compound from its elements.
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Think of a balanced equation and assess the weight before and after reactions.

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