Saturday, May 16, 2020

Access to Condoms Prevents Teen Pregnancy Essay

Does Easy Access to Condoms Lower the Rates of Teen Pregnancy? Many people tend to believe that teenagers are going to have sex anyway, that’s why it’s better to provide an easier access to condoms. In some European countries condoms are even handed out at schools for free. However, is this measure really helpful in achieving the main purpose of the campaign– to decrease the rates of teen pregnancy and venereal diseases? Statistics show that distribution of condoms turns out to be not really helpful. The rates are still growing and there are some truly gruesome cases, when teens of 13 or 14 get pregnant. And the reason, in my opinion, is that easy access to condoms does not cultivate safe sex; it cultivates irresponsibility among people. In the times when contraceptives were either ineffective or extremely hard to get, the moral level of society protected teenagers from getting pregnant – there was an understanding that the consequences of having a good time may be very, very unpleasant. Free sexual relations were shunned by society. Modern teenagers that are taught from the very childhood that sex is completely alright, no matter in what age, with whom or in what circumstances you have it, that you can buy condoms anytime and anywhere, and you shouldnt have such preconceptions. They know that all the negative consequences may be easily averted if sex is safe – but it only breeds overall contempt for the above-mentioned outdated preconceptions and the precautionary measures as well. Easy access to condoms doesn’t and cannot prevent teen pregnancy, for it doesn’t make an influence on the source of the problem; in fact, it only makes it worse. If teenagers don’t understand the seriousness of consequences, social problem will never be resolved.

Wednesday, May 6, 2020

Comparing Different Worldviews And Their Effect On Society

Before comparing and contrasting different worldviews and their effect on society, it is important for us to understand what we are studying. What is a worldview? A worldview can be defined by many different definitions. But broadly, it is a way through which you see and interpret the world and the things around you. It is a mental mode of reality from which we develop ideas and theories about the world. It answers questions: What are humans? Why are we here? What is our purpose? What are your values? What can we know with certainty? Does reality include only matter and energy? Does God exist? (Rusbalt) A world view could be likened to a pair of glasses. –Everything you see will be affected by the pair of glasses you are wearing. If you try on another person’s glasses things might appear blurry, and it could very possibly give you a headache. Carol Hill, a prominent actress in the 1900s, said this of a worldview: â€Å"By ‘worldview’ I mean the basic way of interpreting things and events that pervades a culture so thoroughly that it becomes a culture s concept of reality — what is good, what is important, what is sacred, what is real. Worldview is more than culture, even though the distinction between the two can sometimes be subtle. It extends to perceptions of time and space, of happiness and well-being. The beliefs, values, and behaviors of a culture stem directly from its worldview. (Rusbalt) By definition, a Christian is a follower of Jesus Christ who has personallyShow MoreRelatedThe Religious Traditions Of The East Are All Older Than Western Religions1743 Words   |  7 Pagestraditions have had a shaping effect on their societies in how they look at the world and the â€Å"hope† they offer their followers. Their traditions and beliefs are different than in the west. 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Tuesday, May 5, 2020

Gases carbon monoxide and nitrogen monoxide

Questions: Produce Word Document that covers the following topics: 1. Consider the reaction between gases carbon monoxide and nitrogen monoxide: 2CO + 2NO 2CO2 + N2 Using Boltzmann distribution and collision theory explain what would happen to the rate of a reaction if temperature and pressure were independently increased. Also explain what would happen is a suitable catalyst was used. 2. Have complete Foundation Biology enzymes and rates. 3. Consider the reversible reaction between nitrogen and hydrogen gases to produce ammonia gas the Haber Process N2 + 3H2 2NH3 - The forward reaction is exothermic Explain what is meant by Le Chateliers Principle and use it to explain what happens to the position of the equilibrium if: The concentration of nitrogen is increased Ammonia is removed as soon as it is produced Overall pressure of the system is increased Overall temperature of the system is increased 4. Explain and give examples of what is meant by the following: Acid Base Alkali pH Strong Acid / Base Weak Acid / Base Acid / Base Neutralisation 5. Consider the weak acid, Ethanoic Acid in a buffer solution containing Sodium Ethanoate CH3COOH CH3COO- + H+ CH3COONa CH3COO- + Na+ Explain what would happen to the pH if small volumes of hydrochloric acid or sodium hydroxide were added. 6.Experimentally determine by titration the concentration of sample of a sample of hydrochloric Answers: 1. Consider the reaction between gases carbon monoxide and nitrogen monoxide: 2CO + 2NO 2CO2 + N2 Using Boltzmann distribution and collision theory explain what would happen to the rate of a reaction if temperature and pressure were independently increased. Also explain what would happen is a suitable catalyst was used If the temperature increases independently, the rate of reaction will increase as the will have more energy and the particles will be colliding more. The rate of reaction will increases if they pressure is increased (Barnett and Harrison, 2013). If the pressure is increased, the reactant particles become more crowded, there is greater chance of collision, and the rate of reaction will increase. A catalyst is a substance when added to a reaction it will increase the rate of reaction. If platinum is added to the reaction, the reaction will be very fact. 2. Have complete Foundation Biology enzymes and rates, assessment criteria The chemical principles to analyse a typical analytical technique for the enzymes are the Investigate catalyse activity in plant extracts. Investigate of an enzyme-controlled reaction. Investigate to measure the effect of temperature on lipase activity (Oriakhi, 2009). 3.Consider the reversible reaction between nitrogen and hydrogen gases to produce ammonia gas the Haber Process N2 + 3H22NH3 - The forward reaction is exothermic Explain what is meant by Le Chateliers Principle and use it to explain what happens to the position of the equilibrium if: The concentration of nitrogen is increased Ammonia is removed as soon as it is produced Overall pressure of the system is increased Overall temperature of the system is increased Le Chateliers principle states that if a equilibrium is disturbed by changing the conditions, the position of the equilibrium shifts to counteract the change to re-establish an equilibrium. If the concentration of the nitrogen is increase then: The equilibrium will shift to the right, as the nitrogen will shift the reaction to the right (Haber, Kiwi and Kiwi, 2013). More ammonia will produced. Increase in the heat release. If ammonia is removed as soon as it is produced: The chemical concentration of the right will decrease. If Overall pressure of the system is increased: By increasing the pressure, the reaction will favour the forward reaction. The speed of reaction will increase. More number of Ammonia will produced (Haber, Bars and Schmitz, 2011). If Overall temperature of the system is increased More number of nitrogen and hydrogen will produced. 4. Explain and give examples of what is meant by the following: Acid Base Alkali pH Strong Acid / Base Weak Acid / Base Acid / Base Neutralisation Acid: Acids are the compounds that can donate hydronium ions when dissolved in water. Example: HCL Base: Bases are the substances, which produced hydroxide ions when dissolved in water. Example: Baking soda (Kauzmann, 2013). Alkali: Alkali are the substances which produces hydronium ions in water. Example: sodium hydroxide pH: it is a measure of the hydrogen ion concentration. Solution Strong Acid / Base: acids and bases, which are totally ionized when dissolved in water, are called strong acid and strong bases. Example: HCL is a strong acid. Weak Acid / Base: acids and bases, which are not completely ionized in water, are called weak acid and weak bases. Example: acetic acid is a weak acid. Acid / Base Neutralisation: When a strong acid and a strong base solution are mixed then neutralization reaction occurs. The product produced does not have the characteristics of both acids and the bases. 5. Consider the weak acid, Ethanoic Acid in a buffer solution containing Sodium Ethanoate CH3COOH CH3COO-+ H+ CH3COONa CH3COO-+ Na+ Explain what would happen to the pH if small volumes of hydrochloric acid or sodium hydroxide were added By the addition of hydrochloric acid, the pH remains the same. 6. Experimentally determine by titration the concentration of sample of a sample of hydrochloric acid using a known concentration of sodium carbonate A solution of hydrochloric acid is prepared and standardized against the pure sodium carbonate, and the percentage of the carbonate is determined in the sample (Moore and Langley, 2007). The percentage of Na2Co3 are calculated from the sample from two ways Molarity of the HCL: It is calculated by the following formula MHCl = moles HCl /liter = moles Na2CO3 x 2 (ml HCl/1000) = (wt of Na2CO3) x 2 / (mol wt Na2CO3) (ml HCl/1000) Percentage of the Na2CO3 in sample are calculated by the following %Na2CO3 = wt of Na2CO3 in sample / g sample x 100 References Barnett, C. and Harrison, M. (2013).Plasmas. Burlington: Elsevier Science. Haber, J., Kiwi, L. and Kiwi, L. (2013).Heat Management for Process Intensification of Fast Exothermic Reactions in Microstructured Reactors. Lausanne: EPFL. Haber, R., Bars, R. and Schmitz, U. (2011).Predictive control in process engineering. Weinheim: Wiley-VCH. Kauzmann, W. (2013).Kinetic Theory of Gases. Newburyport: Dover Publications. Moore, J. and Langley, R. (2007).Chemistry for the utterly confused. New York: McGraw-Hill. Oriakhi, C. (2009).Chemistry in quantitative language. Oxford: Oxford University Press.