GCSE Chemistry - Differences Between Compounds, Molecules & Mixtures #3
Cognito・2 minutes read
Molecules are groups of atoms bonded together, compounds consist of different elements in fixed ratios, and mixtures involve substances physically mixed without chemical bonds, making them separable using methods like filtration or distillation. Sodium chloride, oxygen, helium, and carbon dioxide are examples of compounds and mixtures with different properties based on their chemical composition.
Insights
- Molecules are groups of atoms bonded together, while compounds consist of different elements with atoms held by chemical bonds, allowing for consistent proportions and formulas like H2O for water.
- Mixtures involve physically mixed substances without chemical bonds, enabling separation through methods like filtration or distillation, contrasting with compounds formed by chemical bonding.
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Recent questions
What are molecules and compounds?
Molecules are groups of atoms bonded together, while compounds contain different elements bonded together.
How are compounds represented?
Compounds are represented by chemical symbols and consistent proportions of elements.
What are mixtures and how are they separated?
Mixtures involve physically mixed substances that can be separated without chemical bonds.
How do compounds differ from mixtures?
Compounds have elements bonded together, while mixtures are physically mixed substances.
What is the difference between molecules and compounds?
Molecules are groups of atoms, while compounds are different elements bonded together.
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