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What do all these have in common?

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Presentation on theme: "What do all these have in common?"— Presentation transcript:

1 What do all these have in common?

2 To to Balance the Elements
To write a word equation (E) To state the link between reacting masses and predict masses in a reaction. (E) To calculate the mass of a reactant or product in a reaction given the other masses in the reaction (C) To balance a symbol equation (A) 2 mins Equation Mass Reaction Product Balanced Reactant Symbol

3 Naming Compounds Metal goes first Metal + oxygen = Metal oxide
Metal + nitrogen = Metal nitrate Metal + CO2 = Metal carbonate Fluorine, bromine and chlorine  fluoride, bromide or chloride 4 mins

4 Use the rules to name these compounds
Name the compound made from sodium and fluorine. What compound is made from oxygen and zinc? What compound is made in the reaction between bromine and potassium? 3 mins

5 Reactant + Reactant  Products
Word Equations Used to show reactants and products Reactant + Reactant  Products E.g. Magnesium + Oxygen  Magnesium Oxide Write the equations for the compounds you have just named 5 mins

6 To to Balance the Elements
To write a word equation (E) To state the link between reacting masses and predict masses in a reaction. (E) To calculate the mass of a reactant or product in a reaction given the other masses in the reaction (C) To balance a symbol equation (A) 2 mins Equation Mass Reaction Product Balanced Reactant Symbol

7 Symbol Equations Much faster than word equations E.g. Mg + O2  MgO
Write the symbol equations for the word equations you have just completed 5 mins

8 Balancing Equations The number of atoms on each side of the equation must balance E.g Mg +O2  MgO There must be the same number of Mg and O on each side 2 mins

9 Balancing Equations Are the equations on the worksheet balanced?
Finished level 1? Try level 2!

10 Rules You can’t change the formulae
You can only multiply how many of that compound/molecule there is You should have the same number of each element on each side of the equation 2 mins

11 Now try balancing these equations
H2 + Br2 → HBr Na + Cl2 → NaCl CH4 + O2 → CO2 + H2O P + Cl2 → PCI3 CaCO3 → CO2 + CaO Fe + H2O → H2 + Fe3O4 8 mins

12 Red = Balanced Green = Unbalanced
7 mins

13 Starter: are these balanced? Yes or no?
7 mins

14 Reacting Masses The mass of the reactants will always = the mass of the products 2 mins

15 Now you try FeCO3 _________> FeO + CO2
Step 1: Make sure the equation is balanced Step 2: If 3.0g of CO2 is produced from 7.8g of FeCO3, how much FeO was made? 3 mins

16 Objectives Completed 
To state the link between reacting masses and predict masses in a reaction. (E) To calculate the mass of a reactant or product in a reaction given the other masses in the reaction (C)

17 Evaluation Complete your pupil progress sheet for this lesson
Complete any keywords Write a target to help you improve


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