vocab
Element
substance only composed of one type of atom
Heterogeneous Mixture
Mixture whose components are UNEVENLY distributed throughout the mixture
the 3 subatomic particles
protons-(P+) positive
neutrons-(N0) neutral
electrons-(E-) negative
Covalent bond
the mutual sharing of one or more pairs of electrons between two atoms
Non + Non metal
Need to know for next question.
1-Mono 6-Hexa
2-Di 7- Hepta
3-Tri 8- Octa
4-Tetra 9-Nona
5-Penta 10- Deca
Atomic Number
# of atoms in that particular atom
how the periodic table is arranged
Mixtures whose compounds are EVENLY distributed throughout the mixture
molecular ionic compound
compounds made up of ions that form charged particles when an atom (or group of atoms) gains or loses electrons
EX: Ba2N3->Ba3N2
Metallic Bond
between metal and metal atoms
Prefix Chart Pt 2 (name these compounds)
BF3
ClO2
BF3- Boron trifloride
ClO2- Chlorine dioxide
Atomic mass
total number of protons and neutrons in an isotope
Isotope
Atoms of an element with the same number of protons but different number of neutrons
Valence electrons
electrons that are in the outer shell
Ionic Charge examples
Sodium
Sulfur
Tin
Sodium (Na) +1
Sulfur (S) -2
Tin (Sn) +/- 4
Boyle's Law
Example (solve if you have the formula)
103 kPa x 300L= 250 kPa x V2
Formula: P1(x)V1=P2(x)V2
Answer:
103 kPa x 300L= 250 kPa x V2
V2=(103 kPa x 300L)/ 250 kPa
V2=1.24 x 10^2 L
Anion
Gaining 1+ electron creating a negatively charged ion
Polyatomic Ions
Covalent bond of 2 or more atoms
core electrons
electrons that are in the core
Ionic Bond (what to do)
-Cu (II) -> Copper (II)
-ide ending
O- ending differ (look at polyatomic chart)
O4: per+root+ate
O3: root+ate
O2: root +ite
O1: hypo+root+ite
Charles Law
Example ( solve if you have the formula)
400L/331K=V2/297K
Formula:
V1/T1=V2/T2
T=Temp
*** Don't forget to convert to Kalvin (273.15+C=K)
Answer:
400L/331K=V2/297K
(400L/331K)(297K)=V2
V2=358.91
Cation
Losing 1+ valence electrons creating a positively charged ion
Naming covalent bonds
- 1st element in compound, name that element first using the name of the actual element with no change
- 2nd use prefix for number of atoms and use the root for the name and add -ide
Ex
CH4- Carbon tetrahydide
CO- Carbon Monoxide
ionic bond
Metal+non-Metal (cation and anion)
Name these Ionic bonds
MgI2
LiBr
AlCl
MgI2 - Magnesium Iodide
LiBr- Lithium Bromide
AlCl- Aluminum Chloride
Combined Gas Law
Example ( solve if you have formula)
(153 x 30)/313K=(101.3 x V2)/273K
Formula
(P1 x V1)/ T1= (P2 x V2)/T2
Answer:
(153 x 30)/313K=(101.3 x V2)/273K
x 273K
(273(153 x 30)/313K)=(101.3K xV2)
/ 101.3K
(273(153 x 30)/313K)/101.3K= V2
V2= 39.52