well as the H2O2 solution Dependent Variable: Rate of reaction (cm3/second) The gas syringe (± 0.5) is used to measure the amount of oxygen produced from the catalase reaction. A rubber stopper is used to ensure that there is a closed system and no O2 escapes Controlled Variables: Substrate ( H2O2 ) Concentration and Quantity The same pipette will be used to measure
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different amount of sucrose concentrations. The higher molarity concentrations increased the movement of water to balance out the inside of the tube and the beaker. The greater amount of concentration gradient‚ in each tube‚ increased the rate of osmosis. This rate of osmosis is due to the net movement of water from an area of low concentration to an area of high concentration. Because the tubes had different concentrations‚ certain tubes gained more mass than others. Solution A had 0.6 molarity
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divorce law have generally made it easier and cheaper to end marriages‚ but this is not necessarily the cause of the rising divorce rate. Legal changes reflect other changes in society‚ especially changes in attitudes. In particular‚ sociologists argue that social expectations about marriage have changed. Functionalist sociologists even argue that high divorce rates are evidence that marriage is increasing)‚ valued and that people are demanding higher standards from their partners. Couples are no
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What is the rule of 72? Well… here’s the equation: Years to double = 72 / Interest rate DO NOT reread this equation. The rule of 72 is a hard rule to explain. I will do my best to try to explain it. The answer to ‘rule of 72’ gives us a number of years. This number of years tells us how long it takes to double our money. Let’s say you have 100 dollar. The ‘rule of 72’ helps us figure out how long it will take to have 200 dollars. Scenario 1: You have invested your 100 dollars in a 3%
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The Causes of the Rising Divorce Rate There were once the moments that take their breath away‚ leaving their hearts pounding and throat thickening; there were once the ones whose name they secretly write down on their diaries and whose footsteps they can carefully distinguish from others’. They said that it was love and they got married. However‚ as time elapses‚ all the moments are turned into the agonized memory‚ sealed deep in their hearts‚ and covered with stain and dusk; all their beloved
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Outcome 1: Understand the Expected Pattern of Development for Children and Young People From Birth to 19 Years Explain the Difference Between Sequence of Development and Rate of Development and Why The Difference is Important. All children develop at different rates‚ information and sources are only guidelines. These help to monitor what children can and can’t do at certain stages in their lives. It also helps to plan effectively to ensure the child gets the attention they need‚ in the areas
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1.1 Explain the sequence and rate of each aspect of development from birth to 19 years All infants‚ children and young people follow a basic pattern in development. The rate they develop will vary from child to child. This is because all children are individuals‚ however knowing what to expect and roughly what age to expect it (milestones) can help us recognize development issues (early recognition is essential). Development is broken down into five section although they are separate‚ they all interconnect
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There are currently 17% of Caroline County households registered as having no one in the household employed (US Department of Commerce‚ 2015b). Caroline County’s unemployment rate is 7%‚ higher than the state average of 5%. The county’s median household income falls well below the state average‚ $58‚417 and $64‚792 respectively. Over 73% of the employed residents earn $79‚999 or less with the highest percentage of earned wages occurring within the $20‚000-$49‚000 range (US Department of Commerce
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A. Comparison of Volatility by Rate of Evaporation Volatility describes how easily a substance will vaporize (turn into a gas or vapor). A volatile substance can be defined as (1) a substance that evaporates readily at normal temperatures and/or (2) one that has a measurable vapor pressure. The vapor pressure of a substance is the pressure at which its gaseous (vapor) phase is in equilibrium with its liquid or solid phase. It is a measure of the tendency of molecules and atoms to escape from a liquid
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With the rapid urbanization and development of big cities and towns‚ the graph of crimes is also on the increase. This phenomenal rise in offences and crime in cities is a matter of great concern and alarm to all of us. There are robberies‚ murders‚ rapes and what not. The frequent and repeated thefts‚ burglaries‚ robberies‚ murders‚ killings‚ rapes‚ shoplifting‚ pick pocketing‚ drug- abuse‚ illegal trafficking‚ smuggling‚ theft of vehicles etc.‚ have made the common citizens to have sleepless
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