College Chemistry Final Exam Questions and Answers, Exams of Chemistry

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College Chemistry Final Exam Questions with Complete

Solutions.

Molarity Equations - Correct Answer M=mol/Liters Density Formula - Correct Answer d=m/V rate of effusion equation - Correct Answer Square root of molar mass of heaviest molecule/ square root of molar mass of lighter molecule Average Atomic Mass Equation - Correct Answer (mass₁) (abund₁) + (mass₂) (abund₂)...... Total energy equation - Correct Answer ∆Ε= q +w ∆H° of a reaction - Correct Answer (Bonds Broken) - (Bonds Formed) Metal oxides +acids →? - Correct Answer water + salt dipole dipole reactions - Correct Answer polar intermolecular forces ex: HCN or CH₂F₂ Hydrogen Bonds - Correct Answer H bonded to O,F, N MO theory proves - Correct Answer - O2 is paramagnetic London Dispersion Forces - Correct Answer occur in nonpolar molecules ex: BH₃ sigma bond - Correct Answer single bond Pi bond - Correct Answer one bond from a double bond like dissolves - Correct Answer like

how to make a stronger bond? - Correct Answer higher charges and smaller atoms cations are _______ than their atoms - Correct Answer smaller anions are _______ than their atoms - Correct Answer larger chloride - Correct Answer Cl⁻ Chlorate - Correct Answer ClO₃⁻ Perchlorate - Correct Answer ClO₄⁻ Hypochlorate - Correct Answer ClO⁻ Bohr - Correct Answer atomic energy changes Rutherford - Correct Answer discovered the nucleus Thomson - Correct Answer discovered electron subatomic charges Mosley - Correct Answer atomic number Hf - formation - Correct Answer formation of one mole of a compound from elements (elements cannot have one or more moles) exothermic - Correct Answer - ∆H endothermic - Correct Answer +∆H Real gas particles differ from ideal gas law because - Correct Answer they have volume and exhibit intermolecular attractions ideal gas law - Correct Answer PV=nRT ideal gas law when you are not given volume - Correct Answer PM=dRT

Daltons law - Correct Answer Ptotal = P₁ + P₂ +P₃ ..... Pressure - Volume relationships - Correct Answer as P increases, V decreases under what conditions do gases deviate from ideal behavior - Correct Answer very high pressure, and very low volume oxidized - Correct Answer gives away electron (+) reduced - Correct Answer gains an electron (-) Why would Cl₂ react with Br but not I₂? - Correct Answer smaller halogens are more reactive than larger halogens if water evaporates from a solution - Correct Answer M increases if too little solute is used - Correct Answer M decreases Average Atomic Mass - Correct Answer (abund₁)(%/100) + (abund₂)(%/100)..... why do polar molecules deviate from ideal behaviors? - Correct Answer they have stronger intermolecular forces 2 gases at STP have different densities this is probably because they - Correct Answer do not have the same mass ∆E equation - Correct Answer mc∆T if isoelectronic - Correct Answer the smaller size will have more protons the larger size will have fewer protons higher lattice energy is due to - Correct Answer smaller element higher charge