1) The ancient Greek philosophers were probably the first to consider the behavi
ID: 1032647 • Letter: 1
Question
1) The ancient Greek philosophers were probably the first to consider the behavior of matter in an organized fashion. Which is the major distinction between the "Greek philosophers" and "modern scientists"? .A) experimentation B) hypotheses C) observation D) logic 2) Modern chemistry is based primarily on . A) natural philosophy. B) technological advances. C) philosophical speculations. D) experimentation. . 3) Which of the following is a physical change? . A) Ice melts at 0 C . B) Water is decomposed by electricity into hydrogen and oxygen. . C) Carbon combines with oxygen to form carbon dioxide. .D) A.red substance is decomposed by heat to mercury and oxygen. is a chemical property? A) Sugar is a solid at room temperature. B) Salt dissolves in water C) Oil and water do not mix. .D) Sodium reacts with water to form sodium hydroxide.Explanation / Answer
1 - Experimentation : The ancient Greek philosophers were probably the first to consider the behavior of matter in an organized way but they gave thesis over the behaviour of matter but Modern Scientists perform experiment of that particular specy and observe the result of the experiment and discuss those result in a panel and publish them.
2- Experimentation : in modern chemistry the experiments is performed result is discussed and than published
3- Ice melts at 0oC :
Physical change is a type of change in which the form of matter is altered but one substance is not transformed into another. The size or shape of matter may be changed, but no chemical reaction occurs.
Physical changes are usually reversible.
In this case ice and water are reversible
4- Sodium reacts with water and form Sodium hydroxide. : Chemical property is a property or characteristic of a substance that is observed during a reaction in which the chemical composition or identity of the substance is changed in this reaction in occuring in option D
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