Reactions and Bonding
What is Ionic bonding?
A strong chemical bond that is formed by the attraction between two ions of opposite charges.
What is a product?
A new substance produced in a chemical reaction. (the end result of your reaction)
What is the vocab word that machtes with this definiton?
Definiton: The point at which the rate of the forward reaction is equal to the rate of the backward reaction
Vocab word: Equilibrium
What three factors affect the equilibruim of a reaction?
A) Light, Consentration, and temperature
B) The consentration of the reactants along with light and temperature
C)Surface area, Temperature, and catalysts.
D) None of the above
The answer is D! None of the above. The equilibruim is effected by Pressure, concentration and temperature.
What does the reactivity series tell us and what affects the reactivity of an element. (What make is more or less reactive.)
The reactivity series is a chart telling us the reactivity of metals going from top to bottom. The reactivity is effected by the number of electrons in it's outmost shell of an atom.
What is covalent bonding?
A chemical bond between two atoms, in which each atom shares an
electron.
(Sharing is caring:)
What is a Reactant?
The substancee present at the beginnging of a chemical reaction.
Like:
(reactants) 2H2 + O2 -----> 2H2O (Products)
What is an irreversible reaction?
A reaction in which the products can never be turned back into reactants.
(No backies!)
Multiple choice!
What is La Chstelier's Prinicple? Is it...
A)"If changes are made to a system in equilibrium, the system adjusts itself to reduce the effects of the change."
B) "All gases have the same mean thermal expansivity at constant pressure over the same range of temperature"
C)“The amount of substance produced at an electrode is directly proportional to the quantity of electricity passed”
It's A) "If changes are made to a system in equilibrium, the system adjusts itself to reduce the effects of the change."
Give a breif of the collison theory. What does it state?
(does not have to be word for word just the basic idea)
1) The collision theory states that a chemical reaction can only occur between particles when they collide (hit each other)
2) In other words effective collisions lead to chemical reactions
3) The Molcules collide reacting to one another creatinng a quicker reaction rate.
What is metallic bonding?
A chemical bond where positive metal ions form a lattice structure
with freely moving electrons between them.
(Hint: the sea of electrons)
What is Avogradro's Number?
6.02 x 1023= The number of particals per mole.
the particals could be measured as moleclues or atoms whatever it is if it is 6.02x1023
it's a mole.
What is an Reversible reaction?
A reaction in which, under the right conditions, the products can be turned back into the reactants.
Which of these staments are true (if any are) and which Law do they apply to (or what is the law)?
A)" Matter can be created and desytroed during a chemical reaction"
B) "Nothing happens during a chemical reaction"
C) "The mass of products must be equal to the mass of reactants"
D) "Matter cannot be created or destroyed during a chemical reaction"
It's D! "Matter cannot be created or destroyed during a chemical reaction"
What is an inhibter?
A Inhibter is a substance which slows down or prevents a particular chemical reaction or other process or which reduces the activity of a particular reactant, catalyst, or enzyme. In other words it slows down the chemical reaction.
What is a chemical reaction?
An interaction between the atoms of two substances where the
atoms rearrange to form two new molecules.
What is the vocab word that machtes with this definiton?
Definition: The tendency of a substance to react with other substances
Vocab word: Reactivity
What is Actiation energy?
The minimum amount of energy a reaction needs to start (or to activate!)
True or false!
Anions are positive
False! Cations are paw-sitive and anions are negitive.
What is a Promoter?
A Substance added to a solid catalyst to improve its performance in a chemical reaction. In other words it inproves the chemical reaction and it is added to a solid catalyst.
Do you remember the difference between an endothermic and exothermic?
What do each of them do?
a) En-dothermic- A chemical reaction that Takes In (or en) heat
b) Ex-endothermic- A chemical reaction that gives off heat (or extracts heat)
What is the vocab word that machtes with this definiton?
Definiton: A measure of the strength of a solution. I.e., the amount of the solute in the solvent
Vocab word: Concentration
What is the vocab word that machtes with this definiton?
Definition: A substance which speeds up a chemical reaction without being changed by the reaction.
Vocab word: Catalyst
Example: Enzymes in our body help speed up biochemical reactions inside the body.
What is a mole?
(No not the animal;)
(Hint we are not looking for the number we are looking for the definition)
The SI unit or the amount of a substance
1 mole= 6.02 x 1023
What electrons are involved in chemical bonding? What is needed for a chemical reaction and what happens to the bonds?
1)Valence electrons are used in chemical bonding.
2)The molcules have to hit each other in order to create a chemical reaction.
3) Bonds are broken between atoms and the reactants are broken.