Everything Science Grade 11

CHAPTER 1. ATOMICCOMBINATIONS 1.10 Example 13: Molecular shape I QUESTION Determine the shape ofa molecule of O 2 SOLUTION Step ...

1.10 CHAPTER 1. ATOMICCOMBINATIONS Step 2 : Count the number of electron pairs around thecentral atom There are three electronpa ...

CHAPTER 1. ATOMICCOMBINATIONS 1.11 trigonal pyramidal. Activity: Building molecular models In groups, you are going to build a n ...

1.11 CHAPTER 1. ATOMICCOMBINATIONS There are a number ofrules that you need toknow about oxidation numbers, and these arelisted ...

CHAPTER 1. ATOMICCOMBINATIONS 1.11 number of− 1. The oxidation numbers for sodium and chlorine (on the left hand side of the equ ...

1.11 CHAPTER 1. ATOMICCOMBINATIONS Step 2 : Determine the oxidation number for each atom Oxygen (group 16) willhave an oxidation ...

CHAPTER 1. ATOMICCOMBINATIONS 1.11 Bond energy is the energy that mustbe added to the systemfor the bonds to break. When atoms ...

1.11 CHAPTER 1. ATOMICCOMBINATIONS (b) A type of chemical bond that involves the transfer of electrons from one atom to another. ...

CHAPTER 1. ATOMICCOMBINATIONS 1.11 (a) Give the name and chemical formula for each of the ions in solution. (b) What is the chem ...

Intermolecular Forces 2 In the previous chapter, we discussed the different forces that exist between atoms (intramolecular forc ...

CHAPTER 2. INTERMOLECULAR FORCES 2.1 2.1 Types of Intermolecular Forces ESBX It is important to be able to recognise whetherthe ...

2.1 CHAPTER 2. INTERMOLECULAR FORCES Cl− Na+ Cl− Cl− Cl− H 2 O H 2 O H 2 O H 2 O δ− δ− δ− δ− δ+ δ+ δ+ δ+ Figure 2.3: Ion-dipole ...

CHAPTER 2. INTERMOLECULAR FORCES 2.2 Exercise 2 - 1 Complete the following table by placing a tickto show which type of intermo ...

2.2 CHAPTER 2. INTERMOLECULAR FORCES Formula Formula mass Melting point (◦C) Boiling point (◦C) at 1 atm He 4 -270 -269 Ne 20 -2 ...

CHAPTER 2. INTERMOLECULAR FORCES 2.3 discussed more in Chapter ??. You should also notethat the strength of theintermolecular fo ...

2.3 CHAPTER 2. INTERMOLECULAR FORCES water meniscus At the air-water interface, you will notice a meniscus, where the water appe ...

CHAPTER 2. INTERMOLECULAR FORCES 2.3 There are three types of Van der Waal’s forces. These are dipole-dipole, ion-dipole and Lo ...

2.3 CHAPTER 2. INTERMOLECULAR FORCES (c) Ion-dipole forces exist between molecules of HF (d) At room temperatureN 2 is usually a ...

Solutions and solubility 3 We are surrounded bydifferent types of solutions in our daily lives. Any solution is made up of a sol ...

3.2 CHAPTER 3. SOLUTIONS AND SOLUBILITY 3.2 Forces and solutions ESBAB An important question to ask is why some solutes dissolve ...