Assign #1. (I'm pretty sure)

LATE.

1. Phlogiston is the "substance" in matters that appeared when the object was being burned.

2. Alchemy is considered part wishful thinking, part serious science, and park 'hokum'. because many were trying to get gold by using other substances, some were studying the true makeup of elements, and others were simply taking advantage of people and their moneys

3. If a substance is an acid, it will contain many hydrogen Ions. If it's a base, instead it will contain many Oxygen-Hydrogen pairs.

4. The original nine elements of the ancients are gold, silver, copper, tin, iron, lead, mercury, carbon and sulfur.

5. The first to elements that can be attributed to a discoverer are Phosphorus and Arsenic.

6. Both quests are still in existance. Mankind has always been filled with greed. No longer the greed of lead to gold, but the possibility of making more money, or counterfitting it.

The want for eternal life is still present in the fact that we constantly create new medicines to make our lives longer and longer, we develop stem cell research and other things, that are used to prolong life well past the point of living.