Flashcards
Mixtures And Solutions
Flashcards do conjunto (25)
- 1what is a "Pure Substance" ?Matter that can only have one kind of substance in it, for example, table salt.
- 2What is a "Mechanical Mixture" ?A mixture in which you can see the different parts, for example, soil. (same as a hetergenous mixture)
- 3What is a "Homogenous Mixture" ?A mixture in which you cannot see the different parts, for example, Windex.
- 4What is a "Solution" ?A mixture in which you cannot see the different parts.
(same as a homogenous mixture) - 5What is a "Heterogenous Mixture" ?A mixture in which you can see the different parts.
(same as mechanical mixture) - 6What is a "Dilute" ?A solution that contains small amounts of solute to solvent.
- 7What is "Concentration" ?The amount of solute dissolved in certain amounts of solvent, for example,
apple juice. - 8What is the "Particle Theory of Matter" ?The theory the states that all matter is made up of tiny moving and vibrating particles that are attached and
bonded to each other and have spaces between them. - 9What is a "Solvent" ?In a solution, the substance that does the dissolving.
- 10What is a "Solute" ?In a solution, the substance that dissolves.
- 11What is "Solubility" ?The maximum amount of solute that would dissolve in a particular amount of solvent.
- 12What is a "Saturated Solution" ?A solution in which no more solute can be dissolved.
- 13What is an "Unsaturated Solution" ?A solution in which there is still room for more solvent to dissolve.
- 14Why is it important to measure accurately while conducting a lab ?It is important because if you don't measure accurately, your answers will not be correct.
- 15What does this "Safety Symbol" mean ?It means that the substance is flammable and combustible.
- 16Name 5 important safety rules.!. Always wear safety equipment.
2. Tie your hair back (if you have long hair).
3. Never use cracked or broken glassware.
4. Wash your hands after handling substances
5. Read all written instructions before starting an activity. - 17Why is it hard to tell whether a substance is a solution or a pure substance ?It is hard because in a solution and in a pure substance, you cannot see the different parts.
- 18How can you distinguish solutions from a pure substance ?A pure substance cannot be separated in to two different parts and a solution can.
- 19*in what order does the matter chart go in* ?Matter
-
can it be separated?
- no -
pure substance
- yes -
mixture
-
Can you see the different parts?
- no -
solution
- yes -
mechanical mixture - 20Name 5 heterogenous mixtures.1. box of toys
2. drawer
3. pencil case
4. fridge
5. soup - 21Draw a particle picture of a mechanical mixture.The two colours represent two different substances.
- 22What does a solution look like ?
- 23Explain the difference between "Soft" and "Hard" water.Soft water is water that has been treated with salt to remove minerals, such as calcium and magnesium. Hard water is water that still contains minerals inside it.
- 24What factors effect the rate of dissolving ?If the water is hot, for example, it will make the substance dissolve quicker.
- 25Is stirring necessary for dissolving a solute? Explain why or why not.It is not necessary, but it does speed up the dissolving.
Informações
- Descrição
- FlashCards sobre Mixtures And Solutions , criado por lauren612 em 19-02-2015.
- Criado por
- lauren612
- Visualizações
- 32
- Tags
- Avaliação