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Pure substance & mix
| Question | Answer |
|---|---|
| What is a pure substance | Substances that have identical particals and cannot be separated into other materials |
| Mixture | A mixture is matter that is made up of two or more different substances that have not been chemically bonded |
| Two examples of pure substances and mixture | Gold and silver= substances Cereal and lemon juice =mixtures |
| Element | Pure substances that are only made up of one atom |
| Compound | Made up of two or more atoms/elements |
| Compounds and elements different? | Elements are only made up of one atom and compounds are made with two or more atoms |
| Mechanical mixture | Mixture made up of two or more substances that are very distinguishable |
| Why is it also called heterogeneous | Because Herero means more than one thing you can see |
| Give two example of heterogeneous mixtures | Cereal and trail mix |
| What is a solution | Mixtures you hat are mad of two or more substances that have not been chemically combined |
| Why are solutions considered homogeneous | They are call homogeneous because you can’t see all the substances |
| Give three example of homogeneous mixtures | Lemon juice, salt water, Air |
| What is a solute in a solution | The substance that dissolves in the solution |
| What is the solvent | Substance doing the dissolving |
| In a mixture of salt and water identify the soulte and solvent | Salt is the solute because it’s being dissolved by the solvent aka the water cause it’s dissolving the salt |
| What does saturated solution mean | When it containing as much of the solute as it can possible dissolve at as given temperature |
| What happens when a solution becomes saturated | It can’t dissolve anymore |
| Sugar is made of carbon hydrogen and oxygen atoms explain why sugar is classified as Compound not an element | Because an element is only made up of one atom but Compounds are multiple atoms and sugar is made of multiple atoms so it’s a compound |
| Granola and ice tea look very different as mixtures explain why one is a mechanical mixture and one is a solution using particle in your explaintion | Granola is a mechanical mixture because you can see the particles and ice tea is a solution because you can’t see all the particles |
| A student keeps adding sugar to their hot tea. Eventually No more sugar dissolve what type of solution has the tea become | A saturated solution because no more can dissolve |
| How would heating up the tea more effect how much sugar can dissolve | Heating up the tea would make it dissolve quicker because the particles are moving faster because there hot |
| In at mixture of kool-aid powder and water which one is the solute and which is the solvent explain why? | |
| The solute is the kool aid powder because it’s being dissolved by the water and the water is the solvent because it’s dissolving the kool aid powder | |
| Trail mix | Mechanical mixture |
| Oxygen gas | Compound |
| Lemonade | Solution |
| Carbon dioxide | Element |
Created by:
Madelyn_99