Conservation De La Masse Flashcards

You may prefer our related Brainscape-certified flashcards:
1
Q

Definition de la loi de la conservation de la masse

A

Lors d’une reaction chimique, la masse des reactifs est egale a la masse des produits. Rien ne se cree, rien ne se perd.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Etapes pour équilibrer une reaction

A
  1. Ecrire la reaction bilan
  2. compter les atomes de chaque coté
  3. débuter avec l’élément qui se trouve dans le moins des composers
  4. ajouter les nombres en avant pour multiplier un composer
  5. verifie que la masse est conserver
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Stochéometrie?

A

Technique qui permet de calculer la quantité de matière dans chaque terme d’un équation chimique

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Masse molaire?

A

Masse en grames d’une mole de matière. (Ajoute la masse de chaque atome: consulte tableau périodique)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Mole?

A

1 mole= 6,022x10_23 molecules

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Etapes a suivre pendant le calcule

A
  1. Ecrire l’équation équilibrée de la reaction
  2. transformer en moles la masse de la composer connue
  3. trouver le nombre de moles du composer rechercher
  4. convertir les moles en grammes
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Types de reactions chimiques

A
Synthese (a + b - ab)
Decomposition (ab - a+b)
Deplacement simple (a +bc - ac +b)
Deplacement double (ab+cd- ad+cb)
Combustion(hydrocarbure+ O2- CO2+ H2O)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Equation d’hydrocarbures

A

CnH2•(n+1)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

CH4

A

Methane

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

C2H6

A

Éthane

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

C3H8

A

Propane

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

C4H10

A

Butane

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

C5H12

A

Pentane

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

C6H14

A

Hexane

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

C7H16

A

Heptane

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

C8H17

A

Octane