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Changes in Matter
Question | Answer |
---|---|
What is an element? | a form of matter that contains only one kind of atom; cannot be broken down into simpler substances |
what are some examples of an element? | H=Hydrogen C=carbon Cu=copper He=helium ect.... |
What is a molecule? | it is formed by the combining of two or more atoms |
What are some examples of a molecule? | Examples: H2O NaCl |
What is a mixture? | a combination of different substances in which each of the components keeps its own physical and chemical properties despite being mixed |
What are some examples of a mixture? | sandy water ice cream with chocolate syrup Zn+Cu+Pb |
True of False: A solution is a type of mixture | True |
How will an ion be positively charged? | More protons than electrons = positive charge + |
How will an ion be negatively charged? | More electrons than protons = negative charge - |
Name some physical and chemical changes: | physical: shred paper, crumple paper, ect chemical: lights paper on fire, bike rusts |
How do u know if it is a chemical property? | It has the word ability in it |
What is a physical property? | It describes something |