Observations | Reaction Type | Complete and Balance | 1. When heated in oxygen‚ magnesium gives off a bright white flame. | combination reaction | 2Mg + O2-----> 2MgO | 2. Bubbling and fizzing occurs; the zinc appears to “dissolve” and what appears to be “steam” comes off out of container. | single-displacement reaction | Zn + 2 HCl (aq) --> ZnCl2(aq) + H2(g) | 3. Black smoke occurs | decomposition reactions | 2 (H2O2)(aq) MnO2 2 (H2O) + (O2) | 4. reddish-brown deposit
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Reaction on Reaction Paper The first thing that came to my mind when I have heard about Reaction paper is “What exactly is it?” and before I get an understanding of that‚ I resisted that change. But later‚ when I have studied about it and understood its purpose‚ I have started thinking “Why people avoid change at the first look without an analysis?” The general human tendency is to live in a comfortable zone in which he has lived for quite some time. He draws a circle‚ thinks that circle is his
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L.O CYP 3.1 1.2 The difference between sequence of development and rate of development. Children will usually follow the same pattern of development‚ the ages of which they reach them could vary depending on them as an individual as each child is unique and will develop at their own rate. Goals of development are given on a wide average of when the children may be expected to reach this particular stage. In schools some children stand out from the rest of the class because they have reached
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a‚ b) All children develop at their own rate and the term ’Sequence’ and ’Rate’ is used. The meaning for Sequence development is the order in which the child grows and the meaning for Rate is the speed that the child develops. The Development areas include Physical‚ social‚ communication and language‚ cognitive (intellectual)‚ emotional and behavioral and moral. Lots of the skills and the areas of development overlap one another so that the development is interconnected and linked which is called
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Is There A Relationship Between Body Temperature and Heart Rate? Statement of Research Question: This study sets out to determine whether there exists a difference in the average body temperature between males and females. Furthermore‚ the study aims to determine whether an increase in heart rate corresponds with an increase in body temperature. Data Collection: The data was obtained from the article “What’s Normal? -- Temperature‚ Gender‚ and Heart Rate” (Shoemaker‚ Allen 1996) as found in
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calculated products are determined using the limiting reagent‚ (the substance that runs out first which stops the reaction) and are called the theoretical yield. The theoretical yield is the amount of product that should be acquired during the experiment if all aspects go perfectly. However‚ due to experimental errors‚ very few labs do so. These results are called actual yield. The percent ratio between the theoretical and actual yield is called the percentage yield. It is calculated by taking the actual yield
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PUTTING IT TOGETHER: Classifying Chemical Reactions Purpose: To observe and differentiate between the four different types of chemical reactions. Variables: The independent variables are the sodium chloride‚ sodium carbonate‚ magnesium‚copper‚ copper (11) sulfate‚ silver nitrate‚ oxygen‚ lead(11) nitrate‚ sodium carbonate‚ copper (11) sulfate pentahydrate. The dependent variables are the chemical reactions that are being looked for. For example decomposition‚ synthesis‚ single displacement or double
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稭easuring cylinder 稢onical flask 稡ung and delivery tube 稢lamp stand 稡oss head clamp 稵ub 稴topwatch Safety Hydrochloric acid is very corrosive‚ so care will be taken when handling it. Safety goggles will be worn throughout the investigation as the reaction could fizz violently and cause eye damage if it was to spit. Variables 稵emperature 稢oncentration of acid 稴urface area of marble chips 稭ass of marble chips 稸olume of acid Key Variable The only variable that I will intentionally change during
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HCL Technologies Case Study In this Assessment I will use the HCL case study to analyze the trends and economic forces that impact innovation and change in the global markets of HCL Technologies. Analyze the ways that Nayar applied theory to change organizational structure‚ culture‚ and processes to support and sustain innovation in light of the changing global markets. Lastly‚ I will Analyze Nayar’s leadership in relation to the effectiveness of general management planning and decision making
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One of the main physiological changes that occur within the cardiovascular system in response to exercise is heart rate. When engaging in exercise‚ the amount of energy required increases instantaneously within the skeletal muscles. This sudden demand creates increasing stress on the cardio-respiratory system to remove the waste products and carbon dioxide from the cells and provide more oxygen for the working cells. This surge of extra energy that is needed requires the heart to pump faster and
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