Composition of Matter
A uniformly distributed physical combination of two of more substances.
What is a homogeneous mixture?
The number of moles of H2 gas that completely react with 1.5 mol of O2 gas to form H2O.
2 H2 (g) + O2 (g) --> 2 H2O(l)
What is 3.0 mol?
The measure of the uneven distribution of charge in a covalent bond.
What is polarity?
A process that absorbs heat from the surroundings.
What is endothermic?
The point on a phase diagram at which all three phases coexist in equilibrium.
What is the triple point?
The name and symbol of the quantum number that is associated with the energy level and size of an atom.
What is principal quantum number, n?
The formula of the precipitate that forms from Fe2(SO4)3 (aq) + LiOH (aq).
What is Fe(OH)2?
The formula of the ionic compound formed between magnesium and phosphorus.
What is Mg3P2?
The pressure of a gas in a closed container if you double its volume while its temperature is held constant? Be specific!
What is halved?
Represents the ratio of moles of all the atoms in a substance.
What is empirical formula?
The number of protons, neutrons, and electrons in a 197Au2+ ion.
What is p+ = 79; e– = 77; n0 = 118?
The products formed from the following acid-base reaction: Mg(OH)2 (s) + 2 HCl (aq) -->.
What are MgCl2 and H2O?
The intermolecular force responsible for the dissolution of LiCl in water.
What is ion-dipole interaction?
Conditions of pressure and temperature under which gases behave more ideally.
What is high temperature and low pressure?
Two factors that increase the strength of dispersion forces.
What are molar mass/size/polarizability and surface area/shape?
The condensed electron configuration of a gold 2+ ion.
What is [Xe]4f145d9?
The oxidation number of Cr in Na2Cr2O7.
What is +6?
The electronic and molecular geometries of a molecule with 2 lone pairs and 2 bonding pairs.
What are tetrahedral and bent/V-shaped?
States that if a reaction is carried out in a series of steps, delta Hrxn equals the sum of the enthalpy changes for the individual steps.
What is Hess’ law?
The classification of the following reaction:
HCl(aq) + NaHCO3(s) -> NaCl(aq) + H2O(l) + CO2(g)
What is neutralization/acid-base reaction?
The formula for lead(II) phosphate.
What is Pb3(PO4)2?
Two classifications of the following reaction:
2 NaN3 (s) --> 2 Na(s) + 3 N2.
What are decomposition and redox?
The molecular geometry and hybridization around the central atom of SnCl3–.
What are trigonal pyramidal and sp3?
The most dense of the following gases at standard temperature and pressure: H2O(g), CO2(g), N2(g), H2(g)
What is CO2(g)?
Two reasons (based on periodic trends) the oxidation number, formal charge, and actual charge of fluorine in compounds are always -1.
What are high electronegativity and highly exothermic electron affinity.