Matter and Chemical Change Flashcards
A molecular compound is _____?
Two non-metals bonded together
An ionic compound is ______?
A metal and non-metal bonded together
Ionic compounds ______ electrons?
Which means they have a _______ bond?
Transfer
Ionic
Molecular compounds _____ electrons?
Which means they have a ________ bond?
Share
Covalent
What is a precipitate?
A solid substance that forms and separates from a liquid during a chemical reaction
What is the difference between a suspension and an emulsion?
A suspension is a solid dispersed into a liquid
An emulsion is two incompatible liquids that are dispersed into each other
Molecular compounds ______ use prefixes
Ionic compounds _____ use prefixes
Do
Don’t (charges determine ratio of atoms)
Metals reactivity increases as you go _____ and to the ______
Down, left
Non-metals reactivity increases as you go ____ and to the _____ except for the ________ which are unreactive
Up, right, noble gases
An ion is
An atom that has lost or gained electrons
Group 1 are ______ while group 2 are _______
Alkali metals
Alkaline-earth metals
Group 17 are ______ while group 18 are ______
Halogens, noble gases
The outer most electron shell is called the _______ shell
Valence
As reactivity of an element increases, stability ______
Decreases
The diatomic elements are ______
HOBrFINCl
Hydrogen, oxygen, bromine, fluorine, iodine, nitrogen and chloride!
