Physics

Physics, 20.10.2019 19:20, hallmansean04

How is a chemical property different from a chemical change

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Chemistry, 27.07.2019 21:20, mathman783

Afuel scientist burnt a piece of coal and a piece of wood to compare the amount of heat given off by each. which is the correct match of the type of change happening and the property being tested during the process? physical change; chemical property flammability physical change; physical property of flammability chemical change; physical property of heat of combustion chemical change; chemical property of heat of combustion

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Chemistry, 24.09.2019 00:20, RandomLollipop

Identifying physical and chemical changes.matter has both physical and chemical properties and can undergo physical or chemical changes. physical properties are those that a substance displays without changing its composition, whereas chemical properties are evident only during a chemical change (also called a chemical reaction). in contrast, when a substance undergoes a physical change, it may change appearance, but not its composition.part a: classify each of the changes as a physical change or a chemical change.part b: classify each of the properties as a physical property or a chemical property.

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Chemistry, 30.09.2019 08:30, nell1234565

Match each item with the correct statement below. a. can be observed without any change in the identity of the substance. b. the capacity to do work. c. can be observed only when there is a change in composition of a substance. d. substance that changes to a gas easily at room temperature. e.the fact that matter can be neither created nor destroyed in a chemical change. f. any chemical reaction that gives off energy. g. the change of one or more substances into other substances. h another term for chemical change. i. the amount of matter contained in a unit of volume. j. any chemical reaction that absorbs energy. k.the type of change in which the identity of substances does not change. choose from these 1. energy 2. volatile 3. chemical reaction 4. chemical change 5. endothermic 6. exothermic 7. density 8. physical property 9. law of conservation of mass 10. chemical property 11. physical change

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Geography, 01.11.2019 21:31, juuuuuu42

Your teacher burns a piece of steel wool in class, demonstrating the chemical property, flammability. you are curious to see what other things can demonstrate chemical properties. which of these does not demonstrate a chemical change? a) burning sugar demonstrates a chemical change. b) the rusting of steel wool demonstrates a chemical change. c) making soap by allowing fat to react with sodium hydroxide demonstrates a chemical change. d) measuring the freezing point of different concentrations of salt water demonstrates a chemical change.

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