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Which pain theory proposes that neurons have to send both painful and nonpainful stimuli? correct answer: Pattern Theory 
 
Which type of headache does not interfere with everyday activities? correct answer: tension headache 
 
What causes a migraine? correct answer: vasodilation of cerebral vessels or inflammation of meningeal vasculature 
 
After damage to neurons, flaccid paralysis is observed. Which type of motor neurons were damaged? correct answer: lower motor neurons 
 
What disease i...
Approximately what portion of people in the United States suffer from a severe mental illness? correct answer: 1 in 17 
 
What is an accurate example of unequal access to quality mental health care? correct answer: People without good health insurance must resort to public or government-funded organizations 
 
What is true about rates of mental health diagnosis? correct answer: Working-class people are more likely to be diagnosed with a mental illness than are people with non-manual labor job...
In which set of elements would all members be expected to have very similar chemical properties? 
 
-P, Se, I 
-Br, I, At 
-Ne, Na, Mg 
-Cl, Br, Na 
-Si, As, Te correct answer: Br, I, At 
 
Of the following elements, which have been shown to form compounds? 
 
helium neon argon krypton xenon 
 
-xenon, krypton, and argon 
-xenon only 
-xenon and krypton 
-xenon and argon 
-None of the above can form compounds correct answer: xenon, krypton, and argon 
 
Which of the following correctly re...
A __________ ΔH corresponds to an __________ process. 
 
-zero, endothermic 
-positive, exothermic 
-negative, endothermic 
-zero, exothermic 
-positive, endothermic correct answer: positive, endothermic 
 
Which one of the following is NOT considered a fossil fuel? 
 
-natural gas 
-hydrogen 
-anthracite coal 
-petroleum 
-crude oil correct answer: hydrogen 
 
Which one of the following statements is FALSE? 
 
-The enthalpy change for a reaction is equal in magnitude, but opposite i...
Propane (C₃H₈) reacts with oxygen in the air to produce carbon dioxide and water. In a particular experiment, 38.0g of Carbon Dioxide are produced from the reaction 22.05g of propane with excess oxygen. What is the % yield in this reaction? 
 
-94.5 
-66.0 
-86.4 
-38.0 
-57.6 correct answer: 57.6 
 
Gaseous argon has a density of 1.40 g/L at standard conditions. How many argon atoms are in 1.00L of argon gas at standard conditions? 
 
-4.76x10²² 
-6.02x10²³ 
-3.43x10²⁵ 
-1.59...
How many lone pairs of electrons are on the central element in CCI4? correct answer: 0 
 
Use the VSEPR theory to predict the molecular geometry of nitrogen tribromide, NBr3 correct answer: Trigonal Pyramidal 
 
________hybrid orbitals are used for bonding by Xe in the XeF4 molecule. correct answer: sp^3d^2 
 
Which set of ions are isoelectronic in their ground state electron configuration? correct answer: N^3-, o^2-, Mg^2+, Al^3+ 
 
The familiar phenomenon of a rainbow results from the diff...
Types of Electrolytes: correct answer: -strong: SOLUBLE & IONIC 
-weak: SOLUBLE & MOLECULAR 
-non-electrolytes: INSOLUBLE 
 
Solubility Rules correct answer: 1. Group 1A Metals (Li+, Na+, K+, etc.) 
2. Ammonium (NH4+) 
3. Nitrate (NO3-) 
4. Acetate (C2H3O2-) or (CH3COO-) 
5. Hydrogren Carbonate (HCO3-) 
6. Chlorate (ClO3-) 
7. Perchlorate (ClO4-) 
8. Halogens (Cl-, Br-, I-) EXCEPT W/ (Ag+, Pb2+, Hg2^2+) 
9. Sulfate (SO4^2-) EXCEPT W/ (Ag+, Pb2+, Ca2+, Sr2+, Ba2+) 
 
Insolubility Rules correct ...
Solutions can exist in all 3 physical states correct answer: Solid: metal alloys (2 or more metals) 
Gas: Ex: Air — made of nitrogent oxygen and other gases 
Liquid: this is what we will be primarily discussing in this chapter, mostly solutions where water is the solvent AKA aqueous solutions 
 
Nonpolar solvents dissolve_______ correct answer: Nonpolar solutes 
 
Polar solvents dissolve______ correct answer: Polar solutes and many iconic solutes 
 
Polar correct answer: unequal sharing of...
Atom correct answer: Smallest quantity of matter that retains the properties of matter. Building blocks of all matter 
 
Element correct answer: A substance made up of a single type of atom. 
 
α Particle correct answer: A positively charged particle consisting of two protons and two neutrons, emitted in radioactive decay or nuclear fission. 
 
β Particle correct answer: High-speed electron, especially emitted in radioactive decay 
 
γ Rays correct answer: high-energy electromagnetic rad...
Atoms correct answer: the basic building blocks of all matter. The smallest unit of an element that can combine with other elements. 
 
Subatomic Particles correct answer: The smaller particles that make up atoms - protons, neutrons and electrons. 
 
cathode rays correct answer: streams of electrons that are produced when a high voltage is applied to electrodes in an evacuated tube 
 
Radioactivity correct answer: The spontaneous emission of radiation by an unstable atomic nucleus 
 
Nuclear...