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Questions and Answers
What is a mixture in chemistry?
What is a mixture in chemistry?
- A substance made up of two or more unrelated chemical components (correct)
- A substance made up of two or more related chemical components
- A single chemical component
- A substance made up of single type of atoms
What does the chemical formula of water indicate?
What does the chemical formula of water indicate?
- 1 atom of Hydrogen combined with 1 atom of oxygen
- 2 atoms of Hydrogen combined with 1 atom of oxygen (correct)
- 2 atoms of Hydrogen combined with 2 atoms of oxygen
- 1 atom of Hydrogen combined with 2 atoms of oxygen
How are particles arranged in gases?
How are particles arranged in gases?
- Tightly packed with no scope to move around
- Arranged in a certain way with limited movement
- Well separated but cannot move freely
- Well separated and can freely move about (correct)
How are particles arranged in solids?
How are particles arranged in solids?
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What does the chemical formula of Hydrogen Peroxide indicate?
What does the chemical formula of Hydrogen Peroxide indicate?
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Study Notes
Mixtures in Chemistry
- A mixture is a blend of two or more substances, where each substance maintains its chemical properties and can be separated by physical means.
Chemical Formulae
- The chemical formula of water (H2O) indicates that one molecule of water consists of two hydrogen atoms and one oxygen atom.
- The chemical formula of Hydrogen Peroxide (H2O2) indicates that one molecule of Hydrogen Peroxide consists of two hydrogen atoms and two oxygen atoms.
Particle Arrangement
- In gases, particles are arranged randomly and have a lot of space between them, making them highly compressible.
- In solids, particles are closely packed and arranged in a fixed position, making them incompressible.
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