What happens when chemical bonds break? / Que se passe-t-il lorsque des liaisons chimiques se rompent ?
Bonds break and energy is either absorbed or released. / Les liaisons se rompent et l energie est absorbee ou liberee.
What is an endothermic reaction? / Qu est ce qu une reaction endothermique ?
A reaction that absorbs energy from the surroundings. / Une reaction qui absorbe de l energie de l environnement.
What is an exothermic reaction? / Qu est ce qu une reaction exothermique ?
A reaction that releases energy to the surroundings. / Une reaction qui libere de l energie dans l environnement.
How does bond energy relate to reaction energy? / Comment l energie de liaison est-elle liee a l energie de reaction ?
Energy needed to break bonds versus energy released forming new bonds determines overall reaction energy. / L energie necessaire pour rompre les liaisons par rapport a l energie liberee lors de la formation de nouvelles liaisons determine l energie totale de la reaction.
Why do stronger bonds require more energy to break? / Pourquoi les liaisons plus fortes necessitent elles plus d energie pour se rompre ?
Stronger bonds have higher bond energies. / Les liaisons plus fortes ont des energies de liaison plus elevees.
How can breaking and forming bonds affect temperature? / Comment la rupture et la formation des liaisons peuvent-elles affecter la temperature ?
Endothermic reactions cool surroundings exothermic reactions release heat. / Les reactions endothermiques refroidissent l environnement les reactions exothermiques liberent de la chaleur.
What is activation energy? / Qu est ce que l energie d activation ?
The minimum energy required to start a chemical reaction. / L energie minimale requise pour demarrer une reaction chimique.
Why is bond breaking essential in chemical reactions? / Pourquoi la rupture des liaisons est-elle essentielle dans les reactions chimiques ?
Breaking bonds allows atoms to rearrange and form new substances. / La rupture des liaisons permet aux atomes de se reorganiser et de former de nouvelles substances.
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A: Chemistry = Chemical Changes 1.1 The Structure of Matter, A : Chimie = changements chimiques 1.1 La structure de la matière96
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A: Chemistry = Chemical Changes 1.2 Atomic Bonding and Properties, Carte 3549
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A: Chemistry = Chemical Changes 1.3 Breaking Bonds92
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A: Chemistry = Chemical Changes 1.4 Solutions and Concentrations48
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A: Chemistry = Chemical Changes 1.5 Calculating Concentration61
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A: Chemistry = Chemical Changes 2.1 Compounds and Chemical Change58
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A: Chemistry = Chemical Changes 2.2 The Gain and Loss of Electrons96
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A: Chemistry = Chemical Changes 2.3 The Reactivity of Metals99
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A: Chemistry = Chemical Changes 2.4 Using Voltaic Cells74
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A: Chemistry = Chemical Changes 2.5 The Electrolytic Cell59
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A: Chemistry = Chemical Changes 3.1 Carbon Chains134
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A: Chemistry = Chemical Changes 3.2 Saturated and Unsaturated Hydrocarbons195
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A: Chemistry = Chemical Changes 3.3 Petroleum is the Source72
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A: Chemistry = Chemical Changes 3.4 Everyday Use of Hydrocarbons135
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B: Physics = Changes in Motion 1.1 Average Speed29
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B: Physics = Changes in Motion 1.2 Identifying and Solving Problems with New Technologies6
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B: Physics = Changes in Motion 1.3 Average Velocity36
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B: Physics = Changes in Motion 1.4 Graphical Description of Uniform Motion14
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B: Physics = Changes in Motion 1.5 Graphical Description of Accelerated Motion21
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B: Physics = Changes in Motion 1.6 Calculating Displacement During Accelerated Motion29
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B: Physics = Changes in Motion 1.7 Determining Stopping Distance25
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B: Physics = Changes in Motion 1.8 A Closer Look at Braking38
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B: Physics = Changes in Motion 1.9 Newton's First Law of Motion60
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2.1 B: Physics = Changes in Motion 2.1 Momentum38
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B: Physics = Changes in Motion 2.2 Change in Momentum21
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B: Physics = Changes in Motion 2.3 Impulse42
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B: Physics = Changes in Motion 2.4 A Closer Look at Forces and Newton's Third Law31
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B: Physics = Changes in Motion 2.5 Conservation of Momentum23
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B: Physics = Changes in Motion 2.6 Designing a Helmet39
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1.1 C: Geology = the Changing Earth 1.1 The Long Beginning76
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1.2 C: Geology = the Changing Earth 1.2 Early Life62
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1.3 C: Geology = the Changing Earth 1.3 Strange Rocks58
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1.4 C: Geology = the Changing Earth 1.4 Getting a Handle on Time58
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1.5 C: Geology = the Changing Earth 1.5 Pinpointing Time56
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2.1 C: Geology = the Changing Earth 2.1 The Cambrian Explosion100
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2.2 C: Geology = the Changing Earth 2.2 A Billion Dollar Reef87
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2.3 C: Geology = the Changing Earth 2.3 Earthquakes114
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2.4 C: Geology = the Changing Earth 2.4 Raising the Rockies115
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3.1 C: Geology = the Changing Earth 3.1 The Great Cooling55
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3.2 C: Geology = the Changing Earth 3.2 The Icy Epoch66
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3.3 C: Geology = the Changing Earth 3.3 Explaining and Predicting Climate Change134
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D: Biology = Changes in Living Systems 1.1 Water, an Essential Abiotic Factor41
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D: Biology = Changes in Living Systems 1.2 Biotic Factors = the Influence of Living Things82
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D: Biology = Changes in Living Systems 1.3 The Web of Life100
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D: Biology = Changes in Living Systems 1.4 Conducting a Field Study7
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D: Biology = Changes in Living Systems 1.5 The Recycling of Matter125
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D: Biology = Changes in Living Systems 1.6 Biodiversity and the Heritage of our Lands135
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D: Biology = Changes in Living Systems 2.1 Primary Succession54
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D: Biology = Changes in Living Systems 2.2 Secondary Succession57
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D: Biology = Changes in Living Systems 2.3 Populations157
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D: Biology = Changes in Living Systems 2.4 Adaptations and 2.5 Evolutionary Theory122
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Formula Sheets15
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A 1.1 Structure of Matter8
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A 1.2 Atomic Bonding and Properties8
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A 1.3 Breaking Bonds8
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A 1.4 Solutions and Concentrations8
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A 1.5 Calculating Concentration7
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A 2.1 Compounds and Chemical Change8
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A 2.2 The Gain and Loss of Electrons8
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A 2.3 The Reactivity of Metals8
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A 2.4 Using Voltaic Cells8
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A 2.5 Electrolytic Cells8
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A 2.6 Spontaneity and Cell Potentials8
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A 3.1 Carbon Chains8
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A 3.2 Saturated and Unsaturate Hydrocarbons8
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A 3.3 Petroleum is the Source8
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A 3.4 Everyday Use of Hydrocarbons8
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B 1.1 Average Speed6
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B 1.2 Identifying and Solving Problems with New Technologies6
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B 1.3 Average Velocity6
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B 1.4 Graphical Description of Uniform Motion6
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B 1.5 Graphical Description of Accelerated Motion6
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B 1.6 Calculating Displacement During Accelerated Motion6
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B 1.7 Determining Stopping Distance6
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B 1.8 A Closer Look at Breaking6
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B 1.9 Newton's First Law of Motion6
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B 2.1 Momentum6
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B 2.2 Change in Momentum6
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B 2.3 Impulse6
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B 2.4 A Closer Look at Forces and Newton's Third Law6
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B 2.5 Conservation of Momentum6
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B 2.6 Designing a Helmet6
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C 1.1 The Long Beginning6
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C 1.2 Early Life6
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C 1.3 Strange Rocks6
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C 1.4 Getting a Handle on Time6
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C 1.5 Pinpointing Time6
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C 2.1 The Cambrian Explosion6
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C 2.2 A Billion Dollar Reef9
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C 2.3 Earthquakes6
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C 2.4 Raising the Rockies6
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C 3.1 The Great Cooling6
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C 3.2 The Icy Epoch6
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C 3.3 Explaining and Predicting Climate Change6
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D 1.1 Water: An Essential Abiotic Factor6
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D 1.2 Biotic Factors6
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D 1.3 The Web of Life6
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D 1.4 Conducting a Field Study6
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D 1.5 The Recycling of Matter6
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D 1.6 Biodiversity and the Heritage of our Lands6
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D 2.1 Primary Succession6
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D 2.2 Secondary Succession6
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D 2.3 Populations6
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D 2.4 Adaptations6
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D 2.5 Evolutionary Theory6
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Unit A Formulas10
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Unit B Formulas13
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Unit C Formulas13
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SIMDUT17
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1.1 La Structure De La Matière62
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1.2 Liaisons Atomiques Et Propriétés17
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1.3 Rupture Des Liaisons23
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1.4 Solutions Et Concentrations4
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1.5 Calcul De La Concentration44
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2.1 Composés Et Changements Chimiques48
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2.2 Gain Et Perte D'Électrons41
