Chemistry - Unit 5 Chemical Rxns
Call Kai
Learn
Practice Test
Spaced Repetition
Match
Flashcards
Knowt Play1/33
There's no tags or description
Looks like no tags are added yet.
Name | Mastery | Learn | Test | Matching | Spaced | Call with Kai |
|---|
No analytics yet
Send a link to your students to track their progress
34 Terms
Law of Conservation of Mass
Matter is not created nor destroyed. It can only change forms
Precipitate
A chemical reaction between two aqueous solutions are combined and produce a solid
Aqueous
Dissolved in water
Chemical reaction
When two or more substances react to create a new substance
Coefficient
The number that appears in front of a formula in a chemical equation that determines how many molecules there are
Synthesis
A + B = AB
Decomposition
AB = A + B
Single replacement
AB + C = AC + B
Double replacement
AB + CD = AD + BD
Combustion
A + O2 = B
Element activity
How easily an element loses or gains e-
Activity series
A list of elements in the order of how easily they will undergo a chemical reaction
Chemical equilibrium
When the reactants and products are occurring at the same rate
Le Chateliers Principle
When conditions change in a system, the system will reduce the effects of the change
What happens if the temperature of an exothermic reaction is increased?
Reverse reaction
Add reactant
Forwad reaction
Add product
Reverse reaction
Remove reactant
Reverse reaction
Remove product
Forward reaction
What happens if the temperature of an endothermic reaction is increased?
Forward reaction
What happens if the temperature of an endothermic reaction is decreased?
Reverse reaction
What happens if the temperature of an exothermic reaction is decreased?
Reverse reaction
Exothermic
Releases heat - Product
Endothermic
Absorbs heat - Reactant
Pressure decrease
Reaction favors whichever produces more gas molecules
Pressure increase
Reaction favors whichever produces less gas molecules
Acid-base reaction
An acid and a base reacting to form salt and water
Acid
Creates H+ ions in water
Base
Creates OH- ions in water
Salt
Made from the cation of a base and an anion of an acid
Non-metals with great activity
Gain e- easily
Metals with great activity
Lose e- easily
Evidence of a chemical reaction
Release of light or heat, heat absorbed, color change, odor change, gas release
Collision theory
Reacting particles must collide in order for a chemical reaction to occur