Amides can also be derived from acids, such as carboxylic, where the hydroxyl group of the acid has been swapped with ammonia. Another example can be shown in acetic acid, where the resultant product is acetamide. The reaction and separation of ions turned the acid into an amide.mides can also be derived from acids, such as carboxylic, where the hydroxyl group of the acid has been swapped with ammonia. Another example can be shown in acetic acid, where the resultant product is acetamide. The reaction and separation of ions turned the acid into an amide.
Renaissance Humanism Humanism is the term generally applied to the predominant social philosophy and intellectual and literary currents of the period from 1400 to 1650.
The most important invention of the Renaissance, and perhaps in the history of the world, was the printing press. It was invented by German Johannes Gutenberg around 1440. By 1500 there were printing presses throughout Europe.any of the great scientific discoveries made during the Renaissance were in the area of astronomy. Great scientists such as Copernicus, Galileo, and Kepler all made major contributions. This was such a big subject that we devoted an entire page to it. Learn more about it at our page on Renaissance Astronomy.