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MATTER
These are flashcards about Elements, Mixtures and Compounds
Question | Answer |
---|---|
How is matter classified? | matter is classified as elements, mixtures and compounds |
What is an element? | an element is a pure substance that can't be separated into any smaller parts |
What are the three different types of mixtures? | They are colloids, suspensions, and solution |
What is a solution? | A solution is a mixture that appears to be a single substance |
Explain what a mixture is. | A mixture is a combination of 2 or more substances that aren't chemically combined |
What does a solution APPEAR to be? | A solution appears to be a single substance even though it may not be a single substance. |
Explain what the particles of a colloid is. | The particles of a colloid are dispersed but not heavy enough to sink. |
Why would a snow globe be considered as a suspension? | the particles of a snow globe are visible and they are heavy enough to sink. |
What is a suspension? | a mixture in which the materials are dispersed through out liquid or gas but are large enough to settle |
What is a compound? | a compound is a pure substance composed of or more elements that are chemically combined |
What is the difference between a mixture and a compound? | a mixture is a combination of 2 or more substances that aren't chemically combined while the elements of a compound are chemically combined. |
what is the definition of a pure substance? | one type of particles |
What are the two classes of mixtures? | homogeneous and heterogeneous mixtures |
What is a homogeneous mixture? | They are an equal distribution of component particles |
What is a heterogeneous mixture? | They are an irregular distribution of component particles |