General Questions and Answers

N O NO2 N2O2 and N O4 Odo not O do all have the same empirical formula

What is the mole fraction of solute in a 3 80 m aqueous solution

Determine the molarity of a solution with a volume of 417 mL and 0 670 mol of solute dissolved Answer M

Select the compound with the greatest molar mass silicon tetrabromide Osilicon tetrafluoride carbon tetrafluoride Ophosphorus trichloride

A 0 530 m aqueous solution of KBr has a total mass of 71 0 g What masses of solute and solvent are present mass of KBr

Select Select Li Select Li3N N Balanced the unbalanced equation using the dropdowns Reminder The lowest whole numbers should be used when balancing

IV An unknown compound contains 40 calcium 12 carbon and 48 oxygen The molecular mass of the compound is 100 Calculate the Empirical and Molecular formula of the compound

V Find the percentage composition of all elements in glucose C6H 2 06 12

II Find the number of moles and mass of the following a 2 5 x 10 3 molecules of water b 6 8 x 10 25 formula units of sodium chloride c 6 02 x 1024 atoms of gold III Find the mass of the following a 20 moles of Tungsten b 50 moles of CH4 c 3 85 moles of K3PO4

17 What is the real estate term for the time between active status on the multiple listing service MLS and the time the property goes under contract or the seller accepts the date of the offer a days on the market b process of selling c housing timeframe d seller s timeline

I Find the number of moles and number of particles in the following a 80 g of N

Change to the system cause turn both the magnet and the coil around so that both stickers are facing out we will observe The effect on the sy

State Senator Stephanie Demarco is running for governor of the state of Delaware and a Super PAC is formed to support her election The Super PAC raises 6 million from corporate donors whose identities are disclose the Federal Election Commission The Super PAC uses the funds to create television electronic and print advertisements supporting Demarco and attacking the other candidates Super PACs are formed to support Demarco s opponents also funded by corporate donors and engage in similar campaign tactics Opponents of Super PACs roles in campaign fundraising would point to which action in the scenario as evidence of concerns regarding corporate influence upon candidates 4 points The embracing of independent expenditure committees by candidates as a means to accept large amounts of funding The increase in funding for negative attack ads by independent expenditure committees The use of electronic forms of communication by candidates making it difficult for voters to determine the origin of political advertisements The creation of television ads aired during time slots unaffordable without donations from independent expenditure committees

Further rules on campaign finance were scrutinized by the Court when it determined McConnell v Federal Election Commission The case centered on the Bipartisan Campaign Reform Act of 2002 a federal law that imposed new restrictions on campaign financing The Supreme Court upheld provisions which barred the raising of soft money by national parties and the use of soft money by private organizations to fund certain advertisements related to elections However the Court struck down the choice of expenditure rule which required that parties could either make coordinated expenditures for all its candidates or permit candidates to spend independently but not both which they agreed placed an unconstitutional burden on the parties right to make unlimited independent expenditures From Intellectual Property and the Internet First Amendment to the United States Constitution 2014 Which aspect of the election process is being discussed in the passage 4 points The continued need for the Supreme Court to rule on the constitutionality of laws The ongoing debate over the role of money in political speech The expansion of rights being given to minors The rights of political organizations being infringed upon by individuals

While not formally one of the national political institutions political parties today are nonetheless major players in both national and state politics They have long provided what may be considered quasi governmental services including candidate recruitment the operation of political campaigns and the supervision of the voting process As with the federal bureaucracy political parties are important extra constitutional political institutions that have been essentially grafted onto our separation of powers system The ambiguity surrounding the proper institutional role that parties should conceptually play in American politics has posed vexing problems for the courts in balancing party independence with government supervision In order to ascertain the role that political parties should play within our political system it is useful to see them as informal parts of the larger system of separation of powers If parties are seen as part of this larger system then it follows that they are entitled to a certain amount of judicial protection to ensure their integrity and independence Robert C Wington American Political Parties Under the First Amendment 1999 Which function of political parties is addressed in the excerpt 4 points They check government power They are formal institutions of the federal bureaucracy They make long term plans to ensure party dominance They organize the legislative branch through congressional leadership positions

9 29 67 O O O President Bush Iraq 7 25 67 2018 The Associated Press Independent Independent O Independent 89 35 30 91 70 31 Independents XX Republicans XXI 14 34 73 15 31 72 Foreign policy Economy XX XX Examine the graphs and their key in this image How do the graphs support the idea that major political parties often incorporate the values of independent voters into their platforms 4 poin voters share conservative political values with the Republican party voters often agree with the major parties on important issues voters usually support Republican party candidates 85 59 25 83 64 26

but she needs help in naming them so that anyone is able to understand the molecules that she is talking about Provide the name of the molecule described here CO A greenhouse gas that contributes to global warming by trapping heat within the earth s ozone layer Use the editor to format your answer Question 17 1 Point Zahara Noor wants to create a presentation of different molecules that helped change the world but she needs help in naming them so that anyone is able to understand the molecules that she is talking about Provide the name of the molecule described here NaCl Used in cooking and purificati

Names Makeup Stoich SURA 195 MaO 4HCI Mach 4 Ch 4 28 0 1 If 1 25 moles of MinO reacted with MCI a How many moles of MinCl were formed smary rah mnd b How many moles of H O were formed 2 Given the following equation 2K Ch 2 KCI X MAY 0 16 2322 00 26 94 Tmellers 288 How many grams of KCI is produced from 2 50 g of K and excess CH ImolkCLx 15 2 5076 2g 3424425477 noi ngo 125 21 3 Given the following equation 8 Fe 8 Pos What mass of iron is needed to react with 42 0 grams of sulfur K 31 10 K 341012 CI 35492 2K1 050 4K1 e 30 0 4 A chemist reacts 0 34 moles of AlaOs to form aluminum and oxygen a How many moles of Og will be formed

Jefferson Parish Louisiana 1917 STATE OF LOUISIANA PARISH OF JEFFERSON Office of Sheriff and Tax Collector Public Domain Received of A S White resident of Seand 2 Ward the sum of ONE DOLLAR Poll Tax for the year 191 Z for the support of the PUBLIC SCHOOLS 2 Damenkan Seventeenth Amendment The receipt shown in the picture references a practice of voter suppression eliminated by which amendment 4 points Nineteenth Amendment 194 Twenty Fourth Amendment OTwenty Sixth Amendment Meclit and Es Olo Tas Collecter d

17 Water can be made to decompose into its elements by using electricity according to the following equation 2H 0 2H2 g O2 g How many grams of O2 are produced when 0 033 mol of water decompose 18 Joseph Priestley generated oxygen gas by strongly heating mercury II oxide according to the following equation 2HgO s 2Hg 1 O g If 15 0 g HgO decompose how many grams of O2 are theoretically produced 19 Gas X is found to be 24 0 carbon and 76 0 fluorine by mass a Determine the empirical formula of gas X b Given that the molar mass of gas X is 200 04 g mol determine its molecular formula

According to established political models that explain voting behavior which of the following best compares the motivations of rational choice voters and party line voters 4 points Rational Choice Voters A Political party alignment B Behavior personality past actions C Key expectations regarding voters concerns and voters benefits Political party alignment D Expectation of future party behavior A B C D Party Line Voters Behavior personality past actions Expectation of future party behavior Key expectations regarding voters concerns and voters benefits

Popular vote 60 55 50 45 40 35 30 25 20 15 10 5 0 1876 Popular Vote with Associated Information 1888 1876 Tilden Hayes toral College Vote Differed from 2000 2016 Winner of popular vote Winner of electoral vote D Democrat R Republican In which election did the Electoral College come closest to serving as a tiebreaker in an election where the popular vote was nearly evenly split 4 points

38 The element lithium has two stable Isotopes Li 6 and LI 7 How do the atomic structures of these two isotopes compare A Both have 3 protons and 3 electrons but Li 7 has 4 neutrons B Both have 3 protons and 4 neutrons but LI 7 has 4 electrons C LI 6 has 3 protons and 3 electrons LI 7 has 3 protons and 4 electrons D LI 6 has 3 protons 3 neutrons 6 electrons while Li 7 has 3 protons 3 neutrons and 7 electrons

27 Hess s Law What is the molar enthalpy of the formation of 1mol H2SO4 1 given the following information 2H2 g O2 g 2H2O g AHrxn 484kJ 2S s 302 g 2SO3 g AHrxn 890k H2 g 202 g S s H SO40 H2O g SO3 g H2SO4 1 AHrx 814k AHrxn x kJ

25 CH3OH 1 502 CO2 2 H O a b C Methanol CH3OH is used as rocket fuel Methanol is liquid while oxygen carbon dioxide and wate are all gases Use this information to predict the sign of AS Predict the sign of AH knowing that this is a combustion reaction Does the sign of AG depend on temperature for this reaction Explain

7 Which of the following is a property of sodium hydroxide A feels slippery B releases H 0 in aqueous solution C changes litmus paper from blue to red D reacts with magnesium to produce hydrogen gas 8 The conjugate acid of HASO4 is A H O C H ASO4 B As04 D H AsO4 9 Which of the following describes the relationship between H 0 and OH A H O OH 14 00 B HO OH 14 00 C H3O OH 1 0 x 10 4 D H O OH 1 0 x 10 4 10 The OH in a solution A 1 0 x10 11 M B 1 0 x10 M of pH 3 00 is C 1 0 x10 M D 1 0 x10 M 11 The conjugate base of H PO4 is A PO4 C HPO42 B HPO D H PO4 12 Consider the following reaction HBO aq HS aq H BO aq H S 1 The order of Bronsted Lowry acids and bases in this equation is A acid base conj base conj acid B acid base conj acid conj base C base acid conj acid conj base D base acid conj base conj acid 13 Which statement about enthalpy is true a Heat is given off to the surroundings in endothermic reactions b Some substances have a negative specific heat capacity c Specific heat capacity is the same for all liquids d The sign of AH is always negative in exothermic reactions

Which conversion factor will correctly complete this setup for finding the number of moles of O required to completely react with 75 0 grams of Sb The balanced chemica equation for the reaction is shown 4Sb 302 Sb406 75 0g Sb X 1 mole Sb 121 757g Sb X 4 moles Sb 3 moles O 32 g 0 1 mole 1 mole 32 g 02 3 moles O 4 moles Sb X Moles 0

14 The specific heat values of four different substances are given Which substance would heat up the fastest a 1 02 x 10 2 J g C 9 18 x 104 J g C b 15 If object A has a higher temperature than object B then object A c 0 918 J g C d 1 02 J g C a contains more energy as heat than object B b contains less energy as heat than object B c contains the same amount of energy as heat as object B d may contain more less or the same amount of energy as heat as object B 16 A chemical reaction is exothermic when AH is c positive d negative a b zero constant 17 The term that describes disorder in a system is enthalpy c free energy entropy d heat of reaction a b 18 One mole of benzene vapor is cooled to its boiling point The amount of energy released by the benzene as it completely condenses is its enthalpy of fusion entropy of fusion C enthalpy of vaporization d entropy of vaporization 19 Which statement is true for the combustion of ethanol C H5OH 1 302 g 2CO2 g 3H O 1 AH 1370 kJ The enthalpy change would be the same is gaseous water were produced b The potential energy of the products is less than the potential energy of the reactants The potential energy of the products is higher than the potential energy of the reactants The reaction is endothermic a a b C d

D 26 6 mL of a solution of 0 36 Na CO3 is diluted to a diluted solution Question 15 How many mL of 3 00 M HCI solution is needed to prepare 413 2 ml of 0 276 M solution 5 pts

23 A BPO is often requested by whom a sellers b lenders c buyers d sales agents

a sample of 10 0 g of the gaseous hydrocarbon C3H4 to answer the following questions a How many moles are present in this sample b How many molecules are present in the C3H4 sampl c How many carbon atoms are present in this sample

Na N3 8 3 N g 2Na s The equation above is part of the reaction that occurs when an airbag inflates during a collision The bag fill with nitrogen due to the decomposition of sodium azide If an airbag fills with 3 75 mol of nitrogen gas 1 how many moles of sodium azide decomposed Answer Select Select 2 what mass of pure sodium is also created Answer Select Select For your answers select both a value and a unit

a A system consists of three periodic tasks T1 3 1 T2 5 2 and T3 4 1 Based on Figurel schedule a Deadline Monotonic schedule of this system in the interval 0 15 Label any missed deadlines Sebuah sistem yang mengandungi tiga tugas berkala T1 3 1 72 5 2 dan T3 4 1 Lakarkan jadual Tarikh Akhir Monronic dengan selang masa 0 15 Labelkan mana mana tempoh tamat yang terlepas 8 Marks Markah TI H T2 HH 13 HH

29 Price per square foot is in the most sought after areas and lower in the le desirable areas a lower b nonexistent c sometimes measured d higher

Balance this unbalanced equation by entering only whole numbers into the blank If the molar coefficient is 1 enter 1 do not leave it blank

1s22s22p 3s23p64s23d 04p5 is the neutral electron configuration for the element in group Select and period Select

26 What happens when the inventory of homes increases O a value decreases and days on the market increase b value decreases and days on the market decrease c value increases and days on the market decrease d value increases and days on the market increase

27 If an agent wanted to visually illustrate comparables to a seller what format might he or she use O a CMA b stepping stone concept c pricing grid d BPO

21 What is the only true way to know if a property is priced right a place it on the market and see how buyers respond b obtain a certified appraisal c do a comprehensive CMA d check the assessor s evaluation

8 What does BPO stand for a broker property options b broker price options c broker price opinion d broker pricing options

19 What is a real estate factor over which the seller has control O a price b financing c market conditions d economy

16 With a sheriff s sale how long is the period for advertising the property in the legal section of a local newspaper a two weeks b three weeks c four weeks d one week

11 What is one of the most important services real estate agents and brokers offer a pricing property b advertising property c locating property O d selling property

9 Foreclosure is the moment that a the defaulting party fails to appear in court b ownership of property is transferred to a buyer c a party defaults on one payment d ownership of property is transferred to a bank or third party

10 Which factor has the most influence on the amount of buyers in the market a property prices b overall market conditions c inventory d financing

7 For a comparison approach which of the following information is NOT gathered by agents and appraisers a age of property b square footage c color of interior paint d lot size

4 The process of giving something as collateral for a loan without giving up possession is called a O a hypothecation O b pledge c title d deed

7 Which of the following characterizes the type of state Utah is a lien theory state O b title theory state c mortgage theory state d intermediate theory state

A dietician works in a hospital and prepares meals under the guidance of a physician Suppose that for a particular patient a physician prescribes a meal to have 850 calories 60 g of protein and 320 mg of vitamin The dietician decides to prepare the meal using steak each 3 oz serving contains 300 Cal 20 g of protein and no vitamin C baked potatoes one baked potato contains 100 Cal 5 g of protein and 20 mg of vitamin C and Brussels sprouts one 156 g serving contains 50 Cal 5 g of protein and 100 mg of vitamin C How many servings of each food are required to satisfy the physician s requirements serving s of steak baked potato es and CEDE serving s of Brussels sprouts are required

A vitamin A sample contains 2 0 x 102 atoms of carbon What is the mass of the vitamin A sample grams C20H30O Report your answer with the appropriate number of significant figures Mass Vitamin A