Practice Law Of Constant Proportions (3.1.2) - Atoms and Molecules

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9 questions

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6 sample questions

Question 1.
What is the mass ratio of hydrogen to oxygen in water?
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Think about the composition of water.
Question 2.
What are atoms?
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Consider how elements are made up.
3Question 3.
What does the Law of Constant Proportions state?
- Elements can combine in different ratios.
- In compounds, elements combine in fixed ratios.
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Consider how recipes use fixed measurements.
4Question 4.
True or False: Atoms can be created or destroyed in chemical reactions.
- True
- False
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Think about the conservation of mass.
Question 5.
A chemist decomposes 36 grams of water into its constituents. Calculate the mass of hydrogen and oxygen obtained.
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Use the given ratio to calculate the amounts.
Question 6.
Discuss the implications of Dalton's atomic theory on modern chemistry. How does it help in understanding reactions?
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Think about how chemists use this theory to design experiments.

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