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Mixtures
15 questions
Question | Answer |
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How is matter classified? | Matter is classified by its physical properties. |
What technique do scientist use to separate a liquid-liquid mixture? | Scientist use a method called distillation to separate a liquid-liquid mixture. By using there melting points they are able to separate a liquid mixture form another mixture. |
Solutions are mixtures that appear to be a single substance. What are some examples of a solution? | Mixtures like lemoande powder and saltwater are solutions because its hard to see the small particles of salt in saltwater and sugar in lemonade powder |
What is the difference between a homogeneous mixture and a heterogeneous mixture? | A homogeneous mixture has the same uniform appearance and composition throughout while a heterogeneous mixture consists of visibly different substances or phases. |
What class of mixtures is a suspension? | A heterogeneous fluid. It contains particles large enough for sedimentation. |
How do scientist separate mixtures based on density? | By using a machine called a centrifuge that applies centrifugal force to its contents that separates fluids of different density. |
What is a compound? | A pure substance that is composed of two or more separate elements; a mixture. |
How do scientist separate a larger particle- smaller particle mixture? | Scientist use a method called filtration. |
How do scientist separate metal-non-metal mixtures? | Scientist use a magnet to separate non-metals from metals since non-metals wont be attracted by the magnet. |
What technique will a scientist use to separate a liquid-gas mixture? | Scientist use a process called chromatography. |
What are alloys? | A alloy is a partial or complete solid solution of one or more elements in a metallic matrix. |
What type of mixture is a colloid? | A combination of a homogeneous and heterogeneous mixture. |
What is an example of a heterogeneous mixture? | A bowl of Fruit Loops cereal is a heterogeneous mixture because it has cereal bits of many colors floating around in milk. |