Notes unit six

Unit 7 – Chemical Reactions Chemical equations, Energy of Reactions, Rates of reactions, Limiting reactants

Intro Vocabulary ,[object Object],[object Object],[object Object]

Some more vocabulary ,[object Object],[object Object],[object Object],[object Object]

Al 2 (SO 4 ) 3 + Ca(OH) 2  Al(OH) 3 + CaSO 4 ,[object Object],[object Object],[object Object]

Al 2 (SO 4 ) 3 + Ca(OH) 2  Al(OH) 3 + CaSO 4 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Practice Naming & Counting ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Chemical equations can be shown by ,[object Object],[object Object],[object Object],[object Object]

Let’s start with a formula equation ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Balancing equations why & how ,[object Object],[object Object],[object Object],[object Object]

Activity ,[object Object],[object Object],[object Object],[object Object],[object Object]

Think about this… ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Counting molecules/compounds ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Steps to Balancing Equations ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

H 2 + O 2  H 2 O ,[object Object],[object Object],H O Only 2 hydrogen “in” (4 “out”)  place 2 in front of H 2 Recount total number of each type of atom 2 2 * Only add coefficients, NEVER Δ subscripts Can you ever make just 1 molecule of water? coefficient subscript

NaOH  Na 2 O + H 2 O ,[object Object],[object Object],Recount total number of each type of atom 2 Na O H

Fe + O 2  Fe 2 O 3 ,[object Object],[object Object],Recount total number of each type of atom 2 Fe O Only 2 oxygen atom “in” (3 “out”)  place 2 in front of Fe 2 O 3 and place 3 in front of O 2 Only 2 iron atom “in” (4 “out”)  change 2 in front of Fe into a 4 2 3 4

Using state symbols ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

7 Diatomic Molecules ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object],[object Object],[object Object]

Writing formula equation from word equations ,[object Object],Na +1 Br -1 Na +1 Cl -1 NaBr + Cl  NaCl + Br Write formulas & element symbols Check for diatomics (HONClBr I F) Add state symbols Balance Recheck 2 2 (s) (s) (g) (g) NaBrCl 2 2

Another word equation ,[object Object],Al +3 O -2 Al + O  Al 2 O 3 Write formulas & element symbols Check for diatomics (HONClBr I F) Add state symbols Balance Recheck 2 (s) (s) (g) AlO 2 2 3 4

Writing Word Equations ,[object Object],[object Object],[object Object],[object Object]

5 Basic Types of Reactions ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

5 Basic Types of Reactions ,[object Object],[object Object],[object Object],[object Object],[object Object]

5 Basic Types of Reactions ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Information from chemical formulas ,[object Object],[object Object],[object Object]

Calculating Formula Mass ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],+ + 136.14 g

The Mole ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Percent Composition ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Limiting Reactants ,[object Object],[object Object],[object Object],[object Object]

Rates of Reactions ,[object Object],[object Object],[object Object],[object Object]

Activation Energy ,[object Object],[object Object],[object Object],[object Object]

Factors Affecting Reaction Rates ,[object Object],[object Object],[object Object],[object Object]

Factors Affecting Reaction Rates ,[object Object],[object Object],[object Object]

Factors Affecting Reaction Rates ,[object Object],[object Object],[object Object],[object Object],[object Object]

Notes unit six

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Notes unit six