Which of the following are electroytes (either strong or weak- (Choose.docx

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Which of the following are electroytes (either strong or weak? (Choose all that apply.) Na0H CH CH2OH HNO2 QUESTION 2 1 mole of each of the following substances is dissolved in 1 L of water. Order them from most ions (1.) to least ions (4.) in solution NaNO Solution Electrolytes are the substances which produces ion in the solution. So NaOH is the strong electrolyte as it produces Na+ ion and Cl- ion in solution. Fe(NO 3 ) 2 is also strong electrolyte as it produces Fe 2+ and NO 3 - ions in solution Ethanol is non electrolyte as it does not dissociate into ions in solution. HNO 2 is a weak electrolyte Ethanol is non electrolyte so it produces no ions in solution. ZnCl 2 produces 3 ions in the solution as Zn 2+ and 2 Cl - ions in solution H 2 SO 3 is a weak electrolye as bonds are stronger between atoms inside it so it is less likely to dissociate into H+ and HSO 3 - ions.(2 ions are produced) NaNO 3 is strong electrolyte as it is made up of strong acid and strong base so it readily dissociates into Na+ and NO 3 - ions(2 ions) order of compounds based on ions are ZnCl 2 >NaNO 3 >H 2 SO 3 >CH 3 CH 2 OH .

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1. Define computer crime and list several examples of computer crime. 2. Explain the purpose of the Computer Fraud and Abuse Act of 1986 and the Electronic Communications Privacy Act of 1986. 3. Contrast hackers versus crackers. 4. Why are insider threats particularly dangerous for organizations? 5. Define malware and give several examples. 6. What are physical access restrictions, and how do they make an information system more secure? 7. Describe three human-based controls for safeguarding information systems. 8. Describe how the Sarbanesâ€“Oxley Act impacts the IS security of an organization. Solution The various examples of computer crime are: A cracker is one who breaks into or otherwise violates the system integrity of remote machines with malicious intent. Having gained unauthorized access, crackers destroy vital data, deny legitimate users service, or cause problems for their targets. Crackers can easily be identified because their actions are malicious. There are two major types of crackers. The first group has expert crackers who discover new security holes and often write programs that exploit them. The second type, the script kiddie , only knows how to get these programs and run them. Script kiddies are more numerous, but much easier to stop and detect. Besides the ethical difference between the two, the major factor that separates hackers from the vast majority of crackers is an understanding of computer systems and the ability to create software. A real hacker can write code in one or more languages (C, C++, assembly, Java) and understands what that code does and why it works (or doesnâ€™t). The majority of crackers have little programming ability, or none at all, and usually donâ€™t understand how the tools they use work. If a machine gets hacked by a script kiddy, its usually because the administrator didnâ€™t maintain the machine and apply patches for known vulnerabilities. While SOX addressed primarily the accounting side of organizations, it did greatly increase the demand for IS auditors. Regulations put in place by SOX require companies to have controls in place to prevent misuse of fraid, controls to detect potential problems, and effective measures to correct any problems found. Information systems are key in today\'s business environments to handle the mass flow of data transmitted on a daily basis. These systems, however, need to be regularly checked to ensure that they are performing their roles effectively. SOX also placed upon businesses a requirement to preserve evidence to document compliance and for potential lawsuits. Since many of these documents have important information, safeguards need to be put in place to prevent private information from being leaked or accessed. Once again, the fact that seemingly everything is digital means that the safeguards are mostly or all technological in nature, again emphasizing IS security. .

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1. Create a Visual Calculator by using winform application in Microsoft Visual Studio .The application built is designed and work simular to the Windows calculator. 2.The code needs to be done in C++ Programming Solution #include<conio.h> //For_getch()_function #include<math.h> int flag=0; double ans, a, b; using namespace std; namespace Calculator { using namespace System; using namespace System::ComponentModel; using namespace System::Collections; using namespace System::Windows::Forms; using namespace System::Data; using namespace System::Drawing int num[7] = { 0 }; // seed srand((int) time(0)); // Randomize the array values. for (int i = 0; i < 7; i++) num[i] = (rand() % 99) + 1; // set the label text with random number this->label1->Text = Convert::ToString(num[0]); this->label2->Text = Convert::ToString(num[1]); this->label3->Text = Convert::ToString(num[2]); this->label4->Text = Convert::ToString(num[3]); this->label5->Text = Convert::ToString(num[4]); this->label6->Text = Convert::ToString(num[5]); this->label7->Text = Convert::ToString(num[6]); // change the button states. this->button1->Enabled = false; this->button2->Enabled = true; } // Calculator.cpp : main project file. #include \"stdafx.h\" #include \"Form1.h\" using namespace Calculator; [STAThreadAttribute] int main(array<System::String ^> ^args) { // Enabling Windows XP visual effects before any controls are created Application::EnableVisualStyles(); Application::SetCompatibleTextRenderingDefault(false); // Create the main window and run it Application::Run(gcnew Form1()); return 0; } .

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1) describe how temperature influenced what materials condensed from the nebular cloud. 2) compare and contrast the composition of the inner and outer planets 3) explain the frost line and the influence it has on the formation of planets (in any solar system). 4) explain why our solar system has rocky inner planets and gaseous outer planets and identify the most metal-rich planet in the solar system 5) explain the occurrence of Hot Jupiters Solution Solution: 1) During the early stage of evolution , soon after the completion of the cloud collapse , nebula is hot . The mass accretion rate from the nebula onto the star is high . The equilibrium condensation temperature of the Silicates and metal comprises 90 % (by mass) of the condensable solids.The temperature decreases away from the mid plane and away from the Sun. The accretion of gas onto the sun leads to the dissipation of energy . The nebula is heated internally due to this . Condensation metals include Iron , Nickel and Aluminum . Most metals condense into solids at temperatures of 1000 - 1600 K . Metals made up <0.2% of the Nebular mass. 2) The Inner planets are Mercury , Venus ,Earth and Mars. They are all solid and rocky and similar to Earth . Inner Planets are also called Terrestrial Planets . Inner planets are warmer as these are closer to Sun . Outer planets are called Jovian Planets and are mainly Gaseous in nature . Outer planets are colder as they are farther away from the Sun. All Outer planets have rings . 3) Frost line is also called the Snow line or Ice line . It is the radial position of condensation or evaporation front which varies over time . With reference to the formation of the planets, it is the distance in the Solar Nebula from the central protostar where it is very cold to where the volatile compounds like water , Ammonia , CO2 ,CO condense into solid ice grains. 4) The temperature of the early solar system explains the Terrestrial nature of the inner planets . As the gases coalesced to form the proto Sun the temperature in the inner SOlar system rose . The temperatures rose to about 2000 K , so only substance which have very high melting points remained solid . That is why the inner solar system planets are all rocky . 5) Planetary migration is responsible for the formation of hot Jupiters. These are formed in the outer regions and then migrate to the inner regions of the Solar system . It forms beyond the frost line , from rock , ice and gases due to core accretion method of planetary formation . .

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1. In the context of DNS (a) What are the Resource Records, RR. (b) What are the DNS Resolvers and where are they located? (c) In the context of the RR, what is the time to live, TTL? Solution a) A DNS resource record refers to a zone files that is generally used by the DNS server. In each zone, a collection of structured resource records are held, and these records are typically supported by the DNS Server service The DNS is designed to be extensible to support new services through DNS servers communicate with each other using private network protocols. All DNS servers are organized in a hierarchy. At the top level of the hierarchy, so-called root servers store the complete database of Internet domain names and their corresponding IP addresses. c) The formats used for detached Domain Name System (DNS) information .

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1. How are budgets used for a company or in government? What would your suggestions be to balance our economic budget? 2. After identifying suggestions for balancing the economic budget explain the importance of being able to identify various \"variances\" that may be identified? You may use any examples you want. Solution 1. How are budgets used for a company or in government? What would your suggestions be to balance our economic budget? Ans. A government budget is a government document presenting the government\'s proposed revenues and spending for a financial year that is often passed by the legislature, approved by the chief executive or president and presented by the Finance Minister to the nation. The budget is also known as the Annual Financial Statement of the country. This document estimates the anticipated government revenues and government expenditures for the ensuing (current) financial year. [1] For example, only certain types of revenue may be imposed and collected. Property tax is frequently the basis for municipal and county revenues, while sales tax and/or income tax are the basis for state revenues, and income tax and corporate tax are the basis for national revenues. The two basic elements of any budget are the revenues and expenses. In the case of the government, revenues are derived primarily from taxes. Government expenses include spending on current goods and services, which economists call government consumption; government investment expenditures such as infrastructure investment or research expenditure; and transfer payments like unemployment or retirement benefits. A status of financial health in which expenditures exceed revenue. The term \"budget deficit\" is most commonly used to refer to government spending rather than business or individual spending. When referring to accrued federal government deficits, the term \"national debt .

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Which is the stronger acid in the following pair? Explain your reasoning. Be sure to answer all parts. p? Methoxyphenol o? Methoxyphenol The stronger acidity is due to (select all that apply): electron-donating inductive effects intra-molecular hydrogen bonding electron-withdrawing inductive effects conjugation with the substituent Solution 1. Ortho-methoxy phenol is more acidic than para Methoxy phenol. Since OMe is -I group and it stabilizes the phenoxide ion. As we know that strength of Inductive effect decreases with the increase of distance. Hence in para isomer, withdrawing effect of OMe is less compared to ortho isomer. 2. Options B, C and D are correct Intramolecular hydrogen bond: increase the acidity. Ex: ortho Nitro phenol is more acidic than para Nitro phenol, Hydrogen bonding stabilize the anion after proton loosing. -I groups (NO2, CHO, CN etc) increases the acidity Conjugation of group also increases the acidity by resonance Ex: phenol is more acidic than methanol since phenoxide is stabilized by resonance which is not possible to methoxide. .

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Which is NOT true for solute retention? A) Retention time, t r, is the elapsed time between injecting the sample to the arrival of a sample component at the detector minus the dwell time between the end of the column and the detector. B) Adjusted retention time is t râ€™ = t r â€“ t m, where t r is the retention time and t m is the time for mobile phase or unretained solutes to pass through the column. C) The relative retention, ? = r 2 , is the ratio for the adjusted retention time for two t \' r1 components of the sample, where t r2â€™ > t r1â€™ so that ? > 1. D) The retention factor, k = t r ? t m , is the time, tr, required to elute a component t m K 1coefficients for components 2 and 1.minus the time, tm, for mobile phase to pass through the column divided by t m . E) The relative retention, ?, also equals K 2 , where K 2 and K 1 are the partition coefficients for components 2 and 1. Solution (A) is the answer. Reason: The absolute time taken by a compound to travel from the injector through the column to the detector is the retention time. Dwell time will not come into the definition. Rest all options are correct .

Which is NOT true for solute retention- A) Retention time- tr- is the.docx

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Which form type displays records in a tabular format similar to a Datasheet view but has more editing options, such as adding graphics? Datasheet Form Multiple Items Form Split Form Subform Which database property type increases the efficiency of a search on the designated field in the physical database? Validation rule Validation text Indexed Expression Which of the following describes a poor design consideration for a form? Arrange controls closely together or in a sequence that is easy to read by the user. Each form should have a different theme. Make labels descriptive and clear. Right-align labels followed by a colon and left-align bound controls. After running a query, which view will be shown? Datasheet Design Query Result A deletion anomaly is deleting facts about one entity successfully. deleting a table. deleting facts about one entity and deleting facts about another entity. deleting only one fact from a column. Solution 1) DataSheet Form It is a data entry form where we can display query result into tables. 2)Indexed Normally all data stored in database is indexed so that searching by integer index value is faster than searching whole data fields. Normally this search known as indexed search. 3)Right-align labels followed by a colon and left-align bound controls. 4) After running a query, the result shown in daraSheet view. 5)deleting facts about one entity successfully .

Which form type displays records in a tabular format similar to a Data.docx

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which equation best represents the net ionic reaction that occurs when an aqueous solution of barium iodide is mixed with an aqueous solution of lithium sulfate? No net reaction occurs Ba^2+(aq)+SO4^2-(aq)-> BaSO4(s) BaI2(aq)+Li2SO4(aq)-> BaSO4(s)+2LiI(aq) 2H^+(aq)+2I^-(aq)->2HI(g) Ba^2+(aq)+2I^-(aq)+2Li^+(aq)+SO4^2-(aq)-->BaSO4(s)+2LiI(aq) which equation best represents the net ionic reaction that occurs when an aqueous solution of barium iodide is mixed with an aqueous solution of lithium sulfate? No net reaction occurs Ba^2+(aq)+SO4^2-(aq)-> BaSO4(s) BaI2(aq)+Li2SO4(aq)-> BaSO4(s)+2LiI(aq) 2H^+(aq)+2I^-(aq)->2HI(g) Ba^2+(aq)+2I^-(aq)+2Li^+(aq)+SO4^2-(aq)-->BaSO4(s)+2LiI(aq) No net reaction occurs Ba^2+(aq)+SO4^2-(aq)-> BaSO4(s) BaI2(aq)+Li2SO4(aq)-> BaSO4(s)+2LiI(aq) 2H^+(aq)+2I^-(aq)->2HI(g) Ba^2+(aq)+2I^-(aq)+2Li^+(aq)+SO4^2-(aq)-->BaSO4(s)+2LiI(aq) Solution Ans Reaction between aqueous solution of barium iodide and lithium sulfate BaI 2 (aq) + Li 2 SO 4 (aq) -> BaSO 4 (s) + 2LiI(aq) From above reaction it is clear that formation of barium sulfate is solid i.e. in pure form so not participate in net ionic reaction So net ionic reaction is 2LiI(aq) -> 2 Li + (aq) + 2Cl - (aq) So last equation best to represent the net ionic reaction Ba 2+ (aq) + 2I - (aq) + 2Li + (aq) + SO 4 2- (aq) --> BaSO 4 (s) + 2LiI(aq) .

which equation best represents the net ionic reaction that occurs when.docx

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Which complex in the electron transport chain does not contribute to the proton gradient? Why not? Solution Ans - An electron transport chain ( ETC ) is a series of complexes that transfer electrons from electron donors to electron acceptors via redox (both reduction and oxidation occurring simultaneously) reactions, and couples this electron transfer with the transfer of protons (H + ions) across a membrane. This creates an electrochemical proton gradient that drives the synthesis of adenosine triphosphate (ATP), a molecule that stores energy chemically in the form of highly strained bonds. The molecules of the chain include peptides, enzymes (which are proteins or protein complexes), and others. The final acceptor of electrons in the electron transport chain during aerobic respiration is molecular oxygen although a variety of acceptors other than oxygen such as sulfate exist in anaerobic respiration. The four complexes involved in electron transport chain are Complex II does not contribute to proton gradient in electron transport chain. This complex oxidizes succinate, which is produced in TCA cycle, and transfers electrons to ubiquinone. This complex is not associated with any proton gradient. .

Which complex in the electron transport chain does not contribute to t.docx

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where heat is transfer high in conduction or convection where heat is transfer high in conduction or convection Solution CONDUCTION-- Conduction is the transfer of heat between substances that are in direct contact with each other. The better the conductor, the more rapidly heat will be transferred. Metal is a good conduction of heat. Conduction occurs when a substance is heated, particles will gain more energy, and vibrate more. These molecules then bump into nearby particles and transfer some of their energy to them. This then continues and passes the energy from the hot end down to the colder end of the substance. CONVECTION-- Thermal energy is transferred from hot places to cold places by convection. Convection occurs when warmer areas of a liquid or gas rise to cooler areas in the liquid or gas. Cooler liquid or gas then takes the place of the warmer areas which have risen higher. This results in a continous circulation pattern. Water boiling in a pan is a good example of these convection currents. Another good example of convection is in the atmosphere. The earth\'s surface is warmed by the sun, the warm air rises and cool air moves in. Hence more heat is transferred by CONDUCTION because of the direct contact. .

where heat is transfer high in conduction or convection where heat i.docx

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Where do most college students exist on Maslow\'s hierarchy of needs? Be descriptive in your explanation of why... Please be orginial no articles or cut and paste what are your real thoughts! Thanks !! Solution I think that most college students exist between the Love and Belong and Esteem parts of the hierarchy on the pyramid. Many College students have achieved a sense of love and belonging through relationships wthi their friends and family.Â Â Students have made social connections by being members of sports teams, clubs, fraternities, sororities and other types of activities that help to achieve this pyramid level. At the same time, the need for belonging may become overcome other needs depending on the level of peer pressure. Also, college students have a need to feel respected and values by others. This spills into the Esteem layer of Maslow\'s hierarchy pyramid. Students will participate in a hobby, team or other organization to gain recognition of others. By doing this, students achieve a sense of value and acceptance from others. In some cases, there will be a need to achieve popularity or fame but this will not assist in achieving actual happiness as the sense of value and acceptance must really come from within the student .

Where do most college students exist on Maslow-'s hierarchy of needs-.docx

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