4.1.1 reaction mechanism Flashcards
1
Q
what is a covalent bond
A
a shaired pair of e- between 2 atoms
2
Q
homolitic reactions-
- what happens to the covalent bond
- what is made
A
- the bond breaks evenly so one of the shaired pair of e- go to each atom
- radicals
3
Q
hetrolitic reactions-
- what happens to the covalent bond
- what is made
A
- covalent bond breaks unevenly so the shared pair of e- all go to one atom
- ions
4
Q
what does a reaction equation show u and not show
e.g. 2H+O -> h2o
A
shows- reactants, products and stoichiometry ( the constant before element to show how much)
not- how
5
Q
what is a reaction mechanism
A
this shows how the reaction happens and products are made
6
Q
why do we use curly arrows in a reaction mechanism
A
to show the movemment of e-
7
Q
3 types of reactions
A
addition- 2 reactants make 1 products
subsituation- here the reactants switch places to make new 2 products
elimination- 1 reactant to 2 products