The postulate of Dalton's atomic theory that atom is indivisible particle and can be subdivided into smaller particles was later changed because atom can be divided into neutrons, protons and electrons. It was changed because after later finding out that the atom can be divided, the theory was changed to the correct finalized theory.
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I'm not absolutely positively sure of this. I'm only about 99.5% sure.
I'm going to say that it's a chemical change.
Why ?
When a physical change occurs, the properties and characteristics of
the substance stay the same ... like crushing a rock, or boiling water.
In this experiment, you started with water. Water is a single substance,
and its boiling point is +100°C.
After the change, you suddenly have TWO substances.
Their boiling points are <span>-183°C and -253°C .
It's plain to see that the characteristics and properties of the
new substances are nothing like the original substance.
Yep. I convinced myself. It's definitely a chemical change.
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Answer:
Induction
Explanation:
When a body is brought in contact with another, electrons are rearranged by contact.
When a body is rubbed against one another, charging by friction occurs.
The process whereby electrons are rearranged without direct contact with one another is called induction.
By induction electrons can get charged without them having to be in contact with one another.
- When a charged body is brought to the vicinity of the electrons, either an attraction or repulsion force is set up.
- Similar charges causes repulsion
- If a negatively charged body is brought near the electrons, there would be heavy repulsion and the electrons would be forced to rearranged.
- This effect is product as a result of a force field.