Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
37 Cards in this Set
- Front
- Back
|
Anions react with cations to produce neutral compounds called _____
|
ionic compounds
|
|
|
Neutral atoms combine with other neutral atoms to form neutral compounds called ___
|
covalent compounds or molecular compounds
|
|
|
The formula of a compound represents a definite amount of that compound. This amount is called a
|
formula unit (f.u.)
|
|
|
Use coefficients to tell
|
how many f.u. or molecules are present
|
|
|
binary compound contains ______
|
only two elements
|
|
|
acids always have____
|
H (hydrogen) as the cation
|
|
|
HCN
|
hydrocyanic acid
|
|
|
HCl
|
hydrochloric acid
|
|
|
HF
|
hydrofluoric acid
|
|
|
HBr
|
hydrobromic acid
|
|
|
(ternary acid) if anion ends in -ate give_____
|
the acid the ending -ic.
|
|
|
(ternary acid) if the anion ends in -ite give_____
|
the acid the ending -ous.
|
|
|
(ternary acid) If the anion ends in -ide name______
|
like a binary acid
|
|
|
HClO
|
hypochlorous acid
|
|
|
If two nonmetals form a compound,____
|
prefixes are used.
|
|
|
No prefix is used for the first element unless____
|
there is more than one.
|
|
|
combination of symbols that represents the composition of a compound
|
Chemical formula
|
|
|
chemical formula show two things:
|
a. elements present
b. relative number of atoms of each element |
|
|
Subscripts tell______
|
how many atoms of each are present
|
|
|
If no subscript is written,_____
|
there is one atom
|
|
|
A molecule may be______
|
a single atom, a group of atoms, of the same element, or atoms of a number of different elements
|
|
|
molecules made up of single atoms are called_____
|
monatomic molecules
|
|
|
made up of two atoms of the same element
|
diatomic molecules
|
|
|
diatomic molecules (7)
|
H₂, N₂, O₂, F₂, Cl₂, Br₂, I₂
|
|
|
Qualitative analysis of a compound tells___
|
what elements are present
|
|
|
Quantitative analysis of a compound tells_____
|
the relative amounts of each of the elements thmake up the compound.
|
|
|
The formula for compounds that exist as molecules are called_____
|
molecular formulas
|
|
|
The simplest formula that would indicate the ratio between elements
|
empirical formula
|
|
|
Structural formulas show_____
|
the way in which atoms are joined together
|
|
|
If an atom gains or loses electrons it becomes charged and is called___
|
an ion
|
|
|
atom that loses an electron has a + charge and is called____
|
a cation
|
|
|
atom that gains an electron has a - charge and is called____
|
an anion
|
|
|
Compounds always have a___
|
net charge of zero
|
|
|
To be stable, an atom needs to have 8 valence electrons
|
Octet Rule
|
|
|
When a single atom takes on a charge, it is called____
|
a monatomic ion.
|
|
|
The charge on a monatomic ion is called its___
|
oxidation number
|
|
|
An ion made up of more than one atom is called____
|
a polyatomic ion.
|
