Science 10. Unit 1: energy and matter in chemical Change. Chapter 1: Atoms, Elements, and Compounds. 1.1 investigating and working with chemicals.
Unit 1: energy and matter in chemical Change
1.1 investigating and working with chemicals
Modern Chemistry has a recent history dating back to the late 1700s. However, chemical properties and uses have been known to different civilizations for thousands of years:
WHMIS identifies eight classes of hazards:
1.2 developing atomic theories
The Billiard Ball Model
11H - mass number is top, atomic number is bottom
There is one proton, zero neutrons, and one electron.
The name is hydrogen - 1
2.1 Chemical Names and formulas
*The names of ionic compounds DO NOT contain prefixes*
4. Compared with an “____-ate” anion, a “hypo___ite” has two less oxygen atoms in its formulas
5. Compared with an “____-ate” anion, a “per_____ate” has one more oxygen atom in its formula.
2.2 Explaining properties of substances