In a physical change, the original substance still exists, it has only changed form. Energy
changes usually do not accompany physical changes, except in phase changes and when
substances dissolve.
In a chemical change, a new substance is produced. Energy changes always accompany
chemical changes. Chemical changes are always accompanied by physical changes.
Classify the following as examples of a physical change, chemical change, or both kinds.
Answers: 1
History, 22.06.2019 03:00
What can you conclude was a benefit of living a more settled life for prehistoric man? a. more food choices b. more freedom c. less work d. simpler lifestyle !
Answers: 2
History, 22.06.2019 06:00
Poland a: nato b: warsaw pact c: not a member of either alliance
Answers: 2
History, 22.06.2019 06:00
Yugoslavia a: nato b: warsaw pact c: not a member of either alliance
Answers: 1
History, 22.06.2019 08:20
To encourage railroad companies to build railroads across the west, the government gave them subsidies by select the best answer from the choices provided. a. paying the wages of laborers b. giving them building materials c. providing railroad trains d. providing free land
Answers: 2
In a physical change, the original substance still exists, it has only changed form. Energy
change...
History, 28.07.2019 04:34
Biology, 28.07.2019 04:34
Mathematics, 28.07.2019 04:34
Mathematics, 28.07.2019 04:34
Mathematics, 28.07.2019 04:34
Mathematics, 28.07.2019 04:34
Geography, 28.07.2019 04:34