Question

a very simple question what is notebook

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Answer 1

Answer:

It is usually prepared by the addition of HBr to ethene: H2C=CH2 + HBr → H3C-CH2Br. Bromoethane is inexpensive and would rarely be prepared in the laboratory. A laboratory synthesis includes reacting ethanol with a mixture of hydrobromic and sulfuric acids.

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Answer 2

Explanation:

a small book with blank or ruled pages for writing notes in.

OR

A notebook is a blank book that you can write in. Students often carry notebooks, where they can take notes (and doodle). The pages in a notebook are often lined, so that you can write neatly.