The volume of one mole of gas under conditions of room temperature and pressure Data collection and processing Quantitative data in table with units and uncertainties | Mass of Magnesium(Mg) (g) | Volume of Hydrogen (H₂) (cm³) | 1st trial | 0.040 | 39.9 | 2nd trial | 0.040 | 40.3 | 3rd trial | 0.035 | 36.5 | Quantitative data: The Magnesium was silvery-white‚ lustrous and relatively flexible before being placed in the burette. Whilst reacting with the hydrochloric acid‚ it dissolved
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Andrés Becerra Espinoza Ms. Mary Glenn English 10th Grade March‚ 21 2013 What is the Deep Web Surface Web and its Benefits There is a big influence of technology on our daily life. Electronic devices‚ multimedia and computers are things we have to deal with everyday. The Internet‚ especially‚ is becoming more and more important for nearly everybody as it is one of the newest and most forward-looking media and surely -“the”- medium of the future. (Markus Temmel‚ Martina Theuermann‚
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Rate/Volume Analysis The following table presents the extent to which changes in interest rates and changes in the volume of interest-earning assets and interest-bearing liabilities have affected our interest income and interest expense during the periods indicated. Information is provided in each category with respect to (1) the changes attributable to changes in volume (changes in volume multiplied by prior rate)‚ (2) the changes attributable to changes in rate (changes in rate multiplied by prior
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smelly too. This is because her home is underneath the surface of the earth‚ in the year 3000 aliens attacked our planet‚ ever since they have attacked the earth they have been living underground. Their government talked to the aliens and made a deal every 1000 years there would be a competition. 10 humans and 10 aliens would compete to the death‚ and whichever side won would be able to live on the surface again. No human has been on the surface since the war. The government watches the kids throughout
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Diffusion and Osmosis Experiment Methods/Materials: 7.1 Experiment: Rate of Diffusion of Solutes In the initial set up of this experiment I had 2 sets of 3 screw-cap test tubes that had each been half-filled with 5% gelatin and 1-mL of the correct dye (either potassium dichromate‚ aniline blue‚ or Janus green) in each of the test tubes. I labeled the 3 test tubes of set 1 with which die they contained and marked them “5 ˚C”. Then with the other set I did the same exact thing‚ except I labeled
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 IMAGE GOES HERE Image Source Most people have held ice cubes in their hands. What happens to an ice cube that we hold? What do we feel? After a while‚ our hands will feel cold as the ice cubes start to melt. This is due to the transfer of energy from our hands to the ice and the temperature difference between the two objects. The energy we are familiar with is called heat while temperature is the measure of a degree of heat or coldness of an object. In everyday life‚ heat or cold is commonly
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Diffusion and Osmosis NGSSS: SC.912.L.14.2 Relate structure to function for the components of plant and animal cells. Explain the role of cell membranes as a highly selective barrier (passive and active transport). SC.912.L.14.3 Compare and contrast the general structures of plant and animal cells. Compare and contrast the general structures of prokaryotic and eukaryotic cells. AA Background: (Source: www.explorelearning.com) Diffusion is the process in which there is a net movement of
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they weigh the same. What is this difference? The relationship between the lead and feathers is expressed by the physical property called density. Density is defined as the ratio of a substance’s mass to the volume it occupies. Density (g/mL) = Mass (g)___ Volume (mL) In this laboratory exercise‚ you will be using skills and techniques learned earlier to determine the identity of different substances. To determine the precision of your technique‚ you will calculate the
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The factors that would cause the lung to collapse are elastic recoil and high surface tension. And the factors that prevent the lungs from collapse are negative intrapulmonary pressure and surfactant. During expiration : volume increase and pressure decrease During inspiration : volume decrease and pressure increase The role of surfactant is to decrease surface tension by more than 40 times. And it’s effect on surface tension is to prevent them from PO2 in alveolar : 104 PO2 in venous blood
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business. When we use ration analysis we can know about how profitable a business is‚ we can tell if it has enough money to pay its bills and we can even tell whether its shareholders should be happy!! Ration analysis can also help us to check whether a business is doing better this year that it was last year; and it can tell us if our business is doing better or worse that other businesses doing and selling the same thing. What does ration analysis will tell us?? We can use ration analysis to tell
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