Tuesday, 30 May 2017

Term 2 Week 5 2017

Homework
Acid Base Reactions workbooklet


Particle Collision Theory
A chemical reaction can only occur when particles collide with enough force (energy) and at the right  angle to be able to break old bonds and form new bonds.

How to speed up chemical reactions (and get a date)

NCEA Science Level 1 Chemistry: Rates of Reaction


Balanced Ionic Formula
(students examples)

Note: Calcium-bicarbonate below should be 
 Ca2+(HCO3-)2 not Ca2+(HCO3-)2













Note: three salts below should all be sulfate salts



Tuesday, 23 May 2017

Term 2 Week 4 2017

Homework
Acid Base Reactions


Acid Base Reactions

Naming Acids Introduction

Introduction to Balancing Chemical Equations


Balancing Chemical Equations Practice Problems

Tuesday, 16 May 2017

Term 2 Week 3 2017

Homework
Ions workbooklet


Table of Ions

Note:

  • Fe2+ is called Iron(II) this will combine with O2- oxide as FeO Iron(II) Oxide (black iron-oxide)
  • Fe3+ is called Iron(III) this will combine with O2- oxide as Fe2O3 Iron(III) Oxide (red rust)
  • S2- is called the Sulphide Ion and is different to SO42- the Sulphate Iron


Drawing Ions


Writing Simple Ionic Formula


Flourine

Flesh-Eating Hydrofluoric Acid

Chicken in Acid Conclusion

Liquid Oxygen

Burning Iron in Liquid Oxygen



Tuesday, 9 May 2017

Term 2 Week 2 2017

Homework:
Periodic Table & Atomic Structure Workbooklet

Ionic Bonding Introduction

Ionic Bonding Part 2

Ionic Bonding Part 3


Writing Ionic Formulas: Introduction

What's a polyatomic ion?

Writing Formulas with Polyatomic Ions

Term 2 Week 1 2017

Homework:
Periodic Table & Atomic Structure Workbooklet


Just how small is an atom?


Atomic Structue

Name
Mass
Charge
Where
Proton
1
+1
Nucleus
Neutron
1
0
Nucleus
Electron
0
-1
Orbits around Nucleus



Basic Atomic Structure


Atomic Mass Number.1
Atomic Number = number of Protons (& electrons in element)
Mass Number = number of Protons + Neutrons


Atomic Number, Mass Number, and Net Charge

What are Isotopes?

Valence Electrons and the Periodic Table

Term 1 Week 11 2017

Homework:
Worksheets:

  1. Forms of Energy
  2. Transformation of Energy
  3. Gravitational Potential Energy
  4. Kinetic Energy
  5. Work (Change of Energy)
  6. Power (Rate of Change of Energy - Rate of Work)

Work & Power

Power