6.1 History Of Chemistry

Question 1

First substances discovered

Answer 1

Metals

Question 2

Alchemy

Answer 2

Reflection of the serious religious beliefs of the Middle Ages
-focused on manipulating matter aiming to transmute metals like lead to gold
-study of natural world in an attempt to blend the natural world with spiritual world.

Question 3

What did ancient Greeks believe in 500 BCE

Answer 3

All matter was made of four elements:
Earth
Fire
Water
Air

Question 4

Democritus

Answer 4

Theory of atoms

Question 5

Henning Brandt

Answer 5

Phosphorus-1669

Question 6

Robert Boyle

Answer 6

1627-1691 elements
-tested substances to see if they could be broken down into simpler substances
-if they could be broken down it was a compound and if they couldn’t be broken down the substance was a new element

Question 7

Scientific Revolution

Answer 7

“Reformed chemistry movement”

Question 8

Henry Cavendish

Answer 8

Scientific Revolution-1766
-Hydrogen

Question 9

Joesph Priestly

Answer 9

Scientific revolution 1774
-Oxygen

Question 10

Antoine Lavoisier

Answer 10

Scientific Revolution 1743-1794
-first to recognize oxygen as an element

Question 11

Daltons Atomic Theory

Answer 11

1. All matter is made up of atoms, which are particles too small to see
2. Each element has own kind of atom. Atoms of the same element have same mass and properties whereas, atoms of different element have different masses and properties
3. Compounds are created when atoms of different elements combine together in specific ratios, usually whole numbers