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Study Resources (Chemistry)

31) The abbreviated electron configuration for a boron atom (Atomic number = 5) is ________. A) 1s2 2s2 2p6 B) [Ne]2s2 2p1 C) 1s2 2s2 2p1 D) [H]2s2 2p1 E) [He]2s2 2p1 32) The abbreviated electron configuration for the sulfur atom is ________. A) [Ar] 3s2 3p4 B) [S] 3s2 3p4 C) [He] 3s2 3p4 D) [Ne] 3s2 3p4 E) [Ne].
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21) The electron configuration of an atom shows A) the number of isotopes possible. B) a description of the shape of each electron energy level. C) the number of electrons in each electron energy level. D) a diagram of an atomic nucleus. E) the maximum number of electrons each electron energy level can hold. 22) What.
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6.5   Short Answer Questions 1) Write the formula for calcium iodide. 2) Write the name of MgCO3. 3) Write the name of CuSO4. 4) What is the name of K3PO4? 5) What is the name of LiCl? 6) What is the name of Cr2O3? 7) What is the name of NiCO3? 8) NaHCO3 is called ________. 9) Al2O3 is.
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9.2   Bimodal Questions Barium chloride and sodium sulfate react according to the equation below. Answer the following questions about this reaction. BaCl2 (aq)+ Na2SO4 (aq)→ BaSO4 (s)+ 2NaCl(aq) 1) How many moles of barium sulfate are produced from 0.100 mole of barium chloride? A) 0.0100 mol B) 0.100 mol C) 0.200 mol D) 1.00 mol E) 2.00 mol 2).
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8.1   Multiple Choice Questions 1) A chemical equation is balanced when A) the total number of molecules is the same in reactants and products. B) the total number of ions is the same in reactants and products. C) the sum of the coefficients of the reactants is equal to the sum of the coefficients.
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Match the chemical name with the correct formula. A) MgSO4 B) Mg(HSO4)2 C) Mg(HSO3)2 D) MgS E) MgSO3 15) magnesium sulfate 16) magnesium hydrogen sulfate 17) magnesium sulfide 18) magnesium sulfite 19) magnesium hydrogen sulfite Match the property or formula with organic or inorganic. A) organic B) inorganic 20) NaCl 21) flammable 22) low melting point 23) soluble in water 24) CH3?CH3 Match the name with the condensed structural.
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8.3   True/False Questions 1) When methane, CH4, reacts with oxygen, one product is nitrogen gas. 2) When C2H4 reacts with oxygen, one product is water. 3) When nitrogen reacts with hydrogen to produce ammonia, the coefficient for nitrogen in the balanced equation is 2. 4) When balancing the equation for the formation of hydrogen.
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41) A group of covalently bonded atoms that has an overall electrical charge is called a(n) ________. A) ionic compound B) anion C) polyatomic ion D) cation E) molecule 42) What is the correct name of BaSO4? A) barium(I) sulfide B) barium(II) sulfate C) barium sulfide D) barium sulfate E) barium(I) sulfate 43) In a molecule with covalent bonding, A) oppositely charged ions.
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31) The reaction of butane with oxygen is called ________. A) substitution B) addition C) neutralization D) combustion E) titration 32) Name the product(s) of the complete combustion of any hydrocarbon. A) CO only B) CO2 only C) CO + H2O D) CO2 + H2O E) H2O only 33) A compound that contains the ring structure of benzene is called a(n) ________. A).
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41) The letters N-P-K on a fertilizer label stand for the nutrients ________, ________, and ________. A) nitrogen, phosphorus, potassium B) nickel, potassium, krypton C) niobium, phosphorus, potassium D) nitrogen, potassium, argon E) nitrogen, carbon, sulfur 42) What is the percent by mass of chlorine in potassium chloride? A) 52.4% B) 47.6% C) 22.8% D) 50.0% E) 77.2% 43) Find the mass.
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4.4   True/False Questions 1) Sulfur is a non-metal. 2) Iodine is a metal. 3) Chromium is a metal. 4) Radon is a metal. 5) Mercury is a metal. 6) Hydrogen is an alkali metal. 7) Non-metals are poor conductors of electricity. 8) Metals are good conductors of electricity. 9) Semiconductors are usually metalloids. 10) Electrons have an electrical charge of.
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21) The correct name for FeS is ________. A) iron(II) sulfate B) iron(III) sulfite C) iron(II) sulfide D) ferric sulfide E) ferrous sulfite 22) The correct name for SnCl2 is ________. A) tin chloride B) tin(II) chloride C) tin(IV) chloride D) antimony(II) chloride E) antimony dichloride 23) According to the octet rule, sulfide ions should have a charge of ________. A) 6+ B) 8+.
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5.4   True/False Questions 1) The symbol for the wavelength of electromagnetic radiation is λ. 2) The symbol for the frequency of electromagnetic radiation is λ. 3) The shortest wavelength of visible light is violet light. 4) Ultraviolet radiation has lower energy than visible radiation. 5) Infrared radiation has lower energy than visible radiation. 6) Ultraviolet light.
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41) Which one of the following compounds is an alcohol? A) B) C) CH3CH=CHCH2CH3 D) CH3CH2OCH2CH3 E) CH3CH3 42) Which of the following compounds contains a ketone functional group? A) B) C) CH3CH2OCH2CH3 D) E) 43) Which functional group is a carboxylic acid? A) ?OH B)  C)    D) E) ?CH2OH 44) Which compound below contains an ester functional group? A) B).
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31) What is the mass percent oxygen in sodium carbonate, Na2CO3? A) 54.7% B) 15.1% C) 43.4% D) 11.3% E) 56.6% 32) What is the % (by mass) of carbon in carbon dioxide, CO2? A) 72.7% B) 27.3% C) 36.4% D) 33.3% E) 13.6% 33) Calculate the percent by mass sulfur in sulfuric acid, H2SO4. A) 16.3% B) 48.9% C) 23.4% D) 32.7% E) 8.16% 34) How many.
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7.5   Short Answer Questions 1) The simplest or smallest whole-number ratio of the atoms in a compound formula is known as the ________ formula. 2) The actual formula that gives the number of atoms of each type of element in a compound is the ________ formula. 3) What is the mass of 1.000.
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5.5   Short Answer Questions Write the electron configuration for the atom shown. 1) sodium 2) chlorine 3) argon 4) sulfur 5) magnesium 6) phosphorus 7) The p block elements consist of the elements in which groups? 8) The halogen with the highest ionization energy is ________. 9) The number of electrons in the 3p sublevel of silicon is ________. 10)  The.
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6.3   Matching Questions Match the correct name of the polyatomic ions with the formulas given. A) bisulfite B) sulfite C) phosphate D) sulfate E) carbonate F) nitrite G) phosphite H) carbonite I) bicarbonate J) hydroxide K) oxide L) nitrate M) bisulfate 1) NO3- 2) CO32- 3) SO42- 4) SO32- 5) PO43- 6) NO2- 7) HCO3- 8) HSO4- 9) OH- Give the correct charge for ions of the following elements. A) 0 B) 1+ C) 2- D) 2+ E) 1- F).
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31) Iron(III) sulfite has this formula. A) Fe(SO3)3 B) (Fe)2SO3 C) Fe2SO3 D) Fe2(SO3)3 E) (Fe)3(SO3)3 32) Copper(I) chloride has the following formula. A) CuCl B) Cu2Cl2 C) CuCl2 D) Cu2Cl E) Cu2Cl4 33) Lead(II) iodide has the following formula. A) Pb2I2 B) PbI2 C) Pb2I D) Pb2I3 E) PbI 34) Gold(III) bromide has the following correct formula. A) Au3Br3 B) AuBr C) Au3Br D) AuBr3 E) Au3Br2 35) The correct name for CaSO4.
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9.3   True/False Questions 1) In the reaction of hydrogen gas with oxygen gas to produce water, 1.00 mol of oxygen gas can produce 2.00 mol of water, given sufficient hydrogen available. 2) When 1.00 mol of sodium chloride reacts with 0.500 mol of silver nitrate, sodium chloride is the limiting reagent. 3) When.
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11) The following reaction is an example of a ________ reaction. 2 C2H6 (g) + 7 O2 (g) → 4 CO2 (g) + 6 H2O (g) A) displacement B) single replacement C) combustion D) decomposition E) double replacement 12) Which products would result from the double replacement reaction between MgCl2 (aq) and Na2CO3 (aq)? A) Na2Cl2 (aq) and.
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8.4   Short Answer Questions 1) When an electric current is passed through molten salt, this reaction takes place. 2NaCl (l) → 2Na (l) + Cl2 (g) It is an example of a ________ reaction. 2) Write the balanced equation for the reaction of copper(II) chloride with sodium hydroxide to produce copper(II) hydroxide and.
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4.5   Short Answer Questions 1) The number of elements that occur in nature is ________. 2) A sample of matter that consists of only one type of atom is classified as a(n) ________. 3) The correct elemental symbol for tin is ________. 4) The correct elemental symbol for mercury is ________. 5) The term for.
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1) The correct formula for dinitrogen trioxide is ________. A) NO3 B) N2O3 C) N2O2 D) N3O2 E) N2O 52) The formula for sulfur dichloride is ________. A) SCl2 B) S2Cl2 C) S2Cl D) S4Cl2 E) SCl 53) The name of the compound BF3 is ________. A) boron fluoride B) monoboron trifluoride C) boron trifluoride D) monoboronfluoride E).
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11) The correct formula for the compound formed from Mg and S is ________. A) MgS B) MgS2 C) Mg2S D) Mg2S2 E) Mg2S3 12) The name of CCl4 is ________. A) carbon tetrachloride B) carbonyl chloride C) carbon chloride D) carbon chlorine E) chloroform 13) What is the name of the compound NO2? A) nitrogen oxide B) nitroxide C) nitrogen dioxide D) nitrate E) nitrite 14) Name.
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7.3   Matching Questions Match the compound formula with the correct molar mass. A) 2.016 g B) 83.00 g C) 72.00 g D) 28.01 g E) 84.01 g F) 41.99 g G) 110.98 g H) 44.01 g I) 153.8 g J) 134.5 g K) 4.032 g L) 87.92 g M) 39.95 g N) 32.04 g 1) CuCl2 2) NaHCO3 3) Iron(II) sulfide 4) carbon dioxide 5) methanol, CH3OH 6) hydrogen gas 7) argon.
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5.1   Multiple Choice Questions 1) The smallest particle of light is called a ________. A) frequency B) packet C) photon D) wavelength E) velocity 2) The visible light spectrum covers the wavelength range ________. A) 400 to 700 nm B) 250 to 400 nm C) 700 to 900 nm D) 900 to 1400 nm E) 1400 to 2000 nm 3) All electromagnetic radiation.
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11) Magnesium sulfate reacts with barium chloride according to the following balanced equation. If 1.20 g of magnesium sulfate is allowed to react with 10.0 g of barium chloride in a water solution, what is the theoretical yield of barium sulfate? MgSO4(aq) + BaCl2(aq) → BaSO4(s) + MgCl2(aq) A) 1.20 g B) 2.33.
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5.2   Bimodal Questions 1) Electromagnetic radiation normally travels in the form of ________. A) beats B) circles C) waves D) cycles E) seconds 2) The number of electromagnetic waves that travel past a certain point in a given time is the ________ of the radiation. A) frequency B) wavelength C) speed D) color E) count 3) the symbol for the frequency of electromagnetic.
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21) What is the classification for this unbalanced reaction? Fe (s) + HCl (aq) → FeCl3 (aq) + H2 (g) A) combustion B) combination C) decomposition D) single replacement E) double replacement 22) Silver nitrate reacts with potassium chloride to produce solid silver chloride and what substance? A) nitrogen B) oxygen C) potassium metal D) potassium nitrate E) potassium nitrite 23) In any.
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5.3   Matching Questions Match the following. A) s sublevelJ) p orbital B) p sublevelK) d sublevel C) calciumL) kilohertz D) f sublevelM) ν E) ultraviolet lightN) carbon F) visible lightO) λ G) bromineP) s orbital H) neonQ) iron I) megahertz 1) radiation of frequency 700 nm to 400 nm 2) symbol for wavelength 3) symbol for frequency 4) 106 Hertz 5) A spherically shaped orbital 6).
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6.4   True/False Questions 1) Chlorine has an ionic charge of -1. 2) Calcium has an ionic charge of +1. 3) Chromium forms more than one positive ion. 4) The formula of nitrogen tribromide is NBr3. 5) The name of  Al2(SO4)3 is aluminum(II) sulfate. 6) The ion of aluminum is Al3-. 7) The name of FeS is.
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