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Mixtures and Solutions. Dissolving. Matter. Heterogeneous materials - can see two parts. Homogeneous materials can see only one thing - one set of properties. Homogeneous mixtures They’re mixed together so well you only see one thing – it looks pure but it isn’t. Pure substances
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Mixtures and Solutions Dissolving
Matter Heterogeneous materials - can see two parts Homogeneous materialscan see only one thing - one set of properties Homogeneous mixtures They’re mixed together so well you only see one thing – it looks pure but it isn’t Pure substances You can only see one thing because there is only one kind of particle in it. Mechanical Mixture Solution
Particle Theory of Matter • Matter is made of extremely small particles • Particles are alwaysmoving
Particle Theory of Matter • Matter is made of extremely small particles • Particles are always moving and now … • Some particles are attracted to each other
Forming a solution by mixing two or more materials is called dissolving (the Kool-aid dissolves in the water)
The particles in a material stay together because they are attracted to each other. • Sugar dissolves in water because the water particles attract a sugar particle more strongly than the other sugar particles around it can.
2. Then the motion of the water particles carries them away.
3. This makes room for more water particles to move in and attract more sugar particles. • This process continues until all of the sugar is dissolved. Animation
solute solvent The solute dissolves in the solvent There is always more solventthan solute in a solution.
A _________ dissolves in a _________ to form a ___________ video
Matter Heterogeneous materials - can see two parts Homogeneous materialscan see only one thing - one set of properties Homogeneous mixtures They’re mixed together so well you only see one thing – it looks pure but it isn’t Pure substances You can only see one thing because there is only one kind of particle in it. Mechanical Mixture Solution – made when a solute dissolves in a solvent