States of Matter
Bonds
Rxns
math-ish
(periodic table needed)
(periodic table needed)
naming
100
What do Solids, liquids and gasses and plasma look like on the molecular level in terms of density?
From most dense to least, solid, liquid, gas and plasma
100
What elements bond in a ionic bond?
Metal and non-metal
100
What is a combination reaction?
X + Y → XY
100
What is the Molar Mass of MgO?
24.31+16.00=40.31g/mol
100
NaBr
Sodium Bromide
200
What is a crystalline solid?
a solid that has a crystal lattice
200
What elements typically bond in a covalent bond?
non-metal and non-metal
200
What is a decomposition reaction?
AB->A+B
200
What is the difference between molar mass and atomic mass?
molar mass=g/mol is weight of LOTS of atoms
atomic mass=amu is mass of one atom
200
P2O5
diphosphorous pentoxide
300
What is an amorphous solid?
non-crystalline, non-rigid structure, does not have a defined lattice pattern.
300
How do we find the charge of transition metal ions from the chemical formula?
criss-cross method
300
What is a double replacement reaction?
300
How many moles are in 50 g of O?
The molar mass of oxygen is 15.999 g/mol.
50g O×1molO/15.999g O=3 mol O
300
silicon dioxide
SiO2
400
define homogenous and heterogenous mixture.
A homogeneous mixture is a mixture in which the composition is uniform throughout the mixture.
A heterogeneous mixture is a mixture with a non-uniform composition. The composition varies from one region to another with at least two phases that remain separate from each other, with clearly identifiable properties.
400
Molecules are held together in a crystal by
Van der Waal's attraction
400
What is a redox (reduction-oxidation) reaction?
400
50g of Vanadium is mixed with 50g of Ozone (O3) to produce 65g of Vanadium (V) Oxide. What is the percent Yield? Hint: this is the unbalanced formula V+O3-> V2O5
72.8%
400
Diboron tetrabromide
B2Br4
500
What are the 5 types of chemical changes?
The five basic types of chemical reactions are combination, decomposition, single-replacement, double-replacement, and combustion.
500
Ionic bonds easily form when electron when ionization energy of the metallic atom is _____ comparatively.
less
500
Why do we call it a redox (reduction-oxidation) reaction instead of a reduction reaction or an oxidation reaction?
Because oxidation and reduction usually occur together.
500
89.2650g of Vanadium is mixed with 50g of Ozone (O3) to produce 65g of Vanadium (V) Oxide. What is the theoretical yield? Hint: this is the unbalanced formula V+O3-> V2O5
89.26
500
Tin(IV) selenide
SnSe4