Chemistry

Chemistry, 03.07.2019 09:20, Shu11

Is rust forming on metal a chemical or physical change

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Chemistry, 26.06.2019 13:10, Goodgirlkl12k

An industrial chemist is studying a sample of an unknown metal. describe two ways he could change the metal physically and two ways he could change the metal chemically to try to identify ! heat the metal until it melts (physical change). attempt to react the metal with oxygen (chemical change). stretch the metal into a wire (physical change). attempt to react the metal with acid (chemical change).

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Chemistry, 02.07.2019 14:00, holmesleauja

Is each of the following a physical or chemical property? ● melting point ● ability to react ● color ● density ● ability to burn ● ability to rust ● magnetism ● boiling point ● hardness ● conductivity is each of the following a physical or chemical change? ● a puddle evaporating ● adding food coloring to water ● cutting an apple ● denting a piece of metal ● dry ice sublimating ● iron rusting ● limewater (a liquid) and carbon dioxide (a gas) forming chalk (a solid) ● paper burning ● vinegar and baking soda making bubbles ● water boiling

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Chemistry, 22.07.2019 15:30, Boondiddy9

What type of change produced the rust shown above? a. chemical, because a new substance with new properties was formed b. physical, because a new substance with new properties was formed c. physical, because the chemical makeup of the metal did not change d. chemical, because the chemical makeup of the metal did not change

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Physics, 25.09.2019 16:40, chaseashley24

Classify the following as chemical or physical change: (a) adding sugar to lemonade, (b) plants using co2 and h2o to form o2 and sugar, (c) boiling water, (d) frying an egg, (e) rust forming on metal, (f) fruit rotting, (g) removing salt from water by evaporation.

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