Chemistry Chapter 3 Test
physical
A mixture can be separated by __________ means
chemical
A pure mixture can only be separated by __________ means?
increases
Atomic radius _______ down a group
decreases
Atomic radius ________ across a period from left to right
compounds
Atoms of different elements bond together to form __________?
evaporating and distilling
Examples of separating mixtures by physical means?
different substances that remain physically separate
Heterogenous mixtures
looks the same throughout
Homogenous mixtures
energy required to remove the outermost electron from an atom
Ionization energy
decreases
Ionization energy ___________ down a group
increases
Ionization energy _____________across a period from left to right
good conductors, malleable and ductile, solid at room temperature
Metal characteristics
force between the two
More electrons and protons means a stronger _______?
Ammonium sulfate
Name the following Compound: (NH4)2 SO4
tetracarbon nonahydrogen
Name the following Compound: C4H9
Carbon Tetrabromide
Name the following Compound: CBr4
carbon monoxide
Name the following Compound: CO
Mercury(II) fluoride
Name the following Compound: HgF2
Lithium oxide
Name the following Compound: Li2O
Pentaphosphorus decaoxide
Name the following Compound: P5O10
Tin(II) oxide
Name the following Compound: SnO
chemical
New substance is made?
poor conductors, not malleable or ductile
Non Metal characteristics
repeating trends found in periodic table
Periodicity
energy levels within an atom
Periods correspond to?
contains only a single element or compound
Pure matter
groups or families
Vertical columns are called ?
gold and carbon dioxide
What are 2 examples of pure matter?
periods
What are horizontal rows called
a combination of two or more substances in which each substance keeps its properties
What is a mixture?
a mixture of sand and sugar
What is an example of a heterogenous mixture?
pure water
What is an example of a homogenous mixture?
NHCl4
Write the Chemical Formula for: Ammonium chloride
Ca3PO4
Write the Chemical Formula for: Calcium Phosphate
H2O
Write the Chemical Formula for: Dihydrogen monoxide
Au(CN)3
Write the Chemical Formula for: Gold(III) cyanide
PbO2
Write the Chemical Formula for: Lead (IV) oxide
MgS
Write the Chemical Formula for: Magnesium sulfide
NACl
Write the Chemical Formula for: Sodium Chloride
SF6
Write the Chemical Formula for: Sulfur hexaflouride
S3N4
Write the Chemical Formula for: Trisulfur tetranitride
Cu(C2H302)2
Write the Chemical Formula for:Copper (II) acetate
physical properties
____________ can be observed without changing the the substance
chemical properties
____________ can only be observed by changing the substance
characterized by the ability of a substance to react with other substances
chemical properties
generally reversible
physical changes are generally reversible or irreversible ?
describe the look or feel of a substance
physical properties
physical
property is changed but not its chemical identity
