Thursday, November 28, 2019

Lab Report Physical and Chemical Changes Sample

Lab Report: Physical and Chemical Changes Paper Sodium Bicarbonate, Sodium Chloride, Sugar, Sand, and Magnesium. Place small samples of each in the appropriate dishes. 2. Examine each sample with a magnifying glass and magnet and record your observations in the data table. 3. Put small samples of each substance in a test tube along with 3 ml of water to determine their solubility. 4. Mix some of the Iron and Sulfur on a clean disposable dish and examine the mixture with a magnifying glass and magnet. Record your observations in the data table. Save and label this mixture. 5. Mix some of the sand and Sodium Chloride on a clean disposable dish and examine the mixture with a magnifying glass and magnet. Then, place this mixture in a clean 100-ml beaker. Add 30 ml of tap water and stir. Prepare a filtration setup, filter, and record your observations. 6. Pour 10 ml of the filtrate into an evaporating dish, prepare a heating setup, and gently heat until all of the liquid is gone. Examine the residue in the evaporating dish and on the filter paper. 7. Using the crucible tongs, hold a dry piece of Magnesium ribbon in the flame. Quickly place the burning ribbon on the watch glass. Compare the appearance of the ribbon before and after burning. 8. Place the burnt remnants of the Magnesium into a clean test tube, and add 10 drops of Hydrochloric acid to it. Also, add 10 drops to the original Magnesium. Feel the bottom of each tube. 9. Put some sugar in a clean test tube and heat it. Watch for changes and periodically check for odors. Record your results. 10. Scrape some of the sugar residue into a clean test tube and add 3 ml of water to test its solubility. Record your results. We will write a custom essay sample on Lab Report: Physical and Chemical Changes specifically for you for only $16.38 $13.9/page Order now We will write a custom essay sample on Lab Report: Physical and Chemical Changes specifically for you FOR ONLY $16.38 $13.9/page Hire Writer We will write a custom essay sample on Lab Report: Physical and Chemical Changes specifically for you FOR ONLY $16.38 $13.9/page Hire Writer Then add 5 drops of Hydrochloric acid to it and feel the bottom of the tube. 11. Add 5 drops of Hydrochloric acid to the test tube with the Sodium Bicarbonate dissolved in water. Feel the bottom of the tube and note the collection on the sides. 12. Place the sample of the Iron and Sulfur mixture into a clean test tube. Heat it vigorously for several minutes. Submerge the hot test tube into water. Test it for magnetism. Data and Observations: Data Table 1: Physical Properties of Matter Substance Physical State Color Odor Solubility Magnetism Sulfur solid yellow none partially no Iron solid brown rusty metal yes yes Sodium Bicarbonate solid white none yes no Sodium Chloride solid white none yes no Sugar solid white sweet yes no Sand solid tan none partially no Magnetism solid silver metallic no no Data Table 2: Observation of Physical and Chemical Changes System Observations Iron and Sulfur mixture with magnet Only the iron is magnetic; Sulfur is less clumpy Sodium Chloride and sand mixture With water Filtered Evaporated No reaction Sand stays in the filter Water evaporates; Salt stays in dish Magnesium burned in air Burns bright white Magnesium reacted with acid Temperature rises a little; Fizzes Combusted product reacted with acid Temperature rises a lot; Fizzes Sugar heated Smelled like burnt marshmallows; Smoked; Turned black Sodium Bicarbonate Temperature rises a little; Droplets form on inside of tube Calculations: There were no calculations made in this lab. Conclusion: Physical changes do not change the properties of the individual substances. Chemical changes will affect the properties. Lab Report Physical and Chemical Changes Sample Lab Report: Physical and Chemical Changes Paper Sodium Bicarbonate, Sodium Chloride, Sugar, Sand, and Magnesium. Place small samples of each in the appropriate dishes. 2. Examine each sample with a magnifying glass and magnet and record your observations in the data table. 3. Put small samples of each substance in a test tube along with 3 ml of water to determine their solubility. 4. Mix some of the Iron and Sulfur on a clean disposable dish and examine the mixture with a magnifying glass and magnet. Record your observations in the data table. Save and label this mixture. 5. Mix some of the sand and Sodium Chloride on a clean disposable dish and examine the mixture with a magnifying glass and magnet. Then, place this mixture in a clean 100-ml beaker. Add 30 ml of tap water and stir. Prepare a filtration setup, filter, and record your observations. 6. Pour 10 ml of the filtrate into an evaporating dish, prepare a heating setup, and gently heat until all of the liquid is gone. Examine the residue in the evaporating dish and on the filter paper. 7. Using the crucible tongs, hold a dry piece of Magnesium ribbon in the flame. Quickly place the burning ribbon on the watch glass. Compare the appearance of the ribbon before and after burning. 8. Place the burnt remnants of the Magnesium into a clean test tube, and add 10 drops of Hydrochloric acid to it. Also, add 10 drops to the original Magnesium. Feel the bottom of each tube. 9. Put some sugar in a clean test tube and heat it. Watch for changes and periodically check for odors. Record your results. 10. Scrape some of the sugar residue into a clean test tube and add 3 ml of water to test its solubility. Record your results. We will write a custom essay sample on Lab Report: Physical and Chemical Changes specifically for you for only $16.38 $13.9/page Order now We will write a custom essay sample on Lab Report: Physical and Chemical Changes specifically for you FOR ONLY $16.38 $13.9/page Hire Writer We will write a custom essay sample on Lab Report: Physical and Chemical Changes specifically for you FOR ONLY $16.38 $13.9/page Hire Writer Then add 5 drops of Hydrochloric acid to it and feel the bottom of the tube. 11. Add 5 drops of Hydrochloric acid to the test tube with the Sodium Bicarbonate dissolved in water. Feel the bottom of the tube and note the collection on the sides. 12. Place the sample of the Iron and Sulfur mixture into a clean test tube. Heat it vigorously for several minutes. Submerge the hot test tube into water. Test it for magnetism. Data and Observations: Data Table 1: Physical Properties of Matter Substance Physical State Color Odor Solubility Magnetism Sulfur solid yellow none partially no Iron solid brown rusty metal yes yes Sodium Bicarbonate solid white none yes no Sodium Chloride solid white none yes no Sugar solid white sweet yes no Sand solid tan none partially no Magnetism solid silver metallic no no Data Table 2: Observation of Physical and Chemical Changes System Observations Iron and Sulfur mixture with magnet Only the iron is magnetic; Sulfur is less clumpy Sodium Chloride and sand mixture With water Filtered Evaporated No reaction Sand stays in the filter Water evaporates; Salt stays in dish Magnesium burned in air Burns bright white Magnesium reacted with acid Temperature rises a little; Fizzes Combusted product reacted with acid Temperature rises a lot; Fizzes Sugar heated Smelled like burnt marshmallows; Smoked; Turned black Sodium Bicarbonate Temperature rises a little; Droplets form on inside of tube Calculations: There were no calculations made in this lab. Conclusion: Physical changes do not change the properties of the individual substances. Chemical changes will affect the properties.

Sunday, November 24, 2019

How To Do Remarkable Customer Research With Rand Fishkin

How To Do Remarkable Customer Research With Rand Fishkin Where do your customers hang out? What kinds of things do they like? What publications do they read? Customer research involves a lot of leg work, so does this information even matter? How can you leverage such insight for SEO? Today, we’re talking to Rand Fishkin, founder of SparkToro and author of Lost and Founder. He is a powerhouse in the content marketing and SEO world. Some of the highlights of the show include: Background, origination, and purpose of SparkToro Reaching/Researching Audiences: Slow, frustrating, and inaccurate process Companies spend money contracting agencies for a list of top customers, blogs, podcasts, and events Bones of Audience Intelligence: 1) Identify audiences across channels; 2) Know audience density; 3) Use trustworthy and valuable metrics How to obtain, benchmark, filter, and analyze data Data Points: Which to focus on and where to get them Social Network Profiles: Report follower count and engagement Biases generate unrepresentative data influenced by SEO Significant sample sizes and diverse groups are needed for true coverage Examples of missing specific audiences SparkToro lets you find people who practice specific fields Does current audience intelligence data represent the market as a whole? Improve SEO by helping audience accomplish tasks, and identifying and broadening link sources Powered by PodcastMotor Actionable Content Marketing powered by By AMP081: How To Do Remarkable Customer Research With Rand Fishkin From SparkToro 00:00/00:00 1x 100 > Download file Subscribe on iTunes Leave Review Share Links: Rand Fishkin on Twitter SparkToro Lost and Founder Project Event Safe Moz SurveyMonkey Audience Nate Silver SimilarWeb Pro AMP on iTunes leave a review and send screenshot to podcast@.com If you liked today’s show, please subscribe on iTunes to The Actionable Content Marketing Podcast! The podcast is also available on SoundCloud, Stitcher, and Google Play. Quotes by Rand: â€Å"If you’re looking at a social network profile, don’t just report on follower count, go look at the last 20 or 50 postsreport on how much engagement did each of those get.† â€Å"Go out there, build a company, make mistakes, just don’t make exactly the same ones I did.† â€Å"You get biased by your existing understanding of the field.†

Thursday, November 21, 2019

My project discussion will be based on the research conducted to Essay

My project discussion will be based on the research conducted to evaluate the immigration policy and the impact it has on the va - Essay Example The country focuses on poverty elimination through increasing its citizens’ standard of living. Canada is among the top nations characterized by government transparency, rising education levels, economic freedom, and increased quality of life among its citizens (OECD 39). Canada is filled with citizens of diverse cultures and the country has constantly encouraged unity in diversity and allowing citizens to pursue their cultures and traditions. South Africa on the other hand is an upper-middle income developing country with an exploitative past of apartheid regime (Abegunrin 49). The country adapted constitutional democracy characterized by the division of powers among the executive, judiciary, and the legislature. Canada’s political environment is a major bolster to its profound economic growth since it offers a conducive environment for both domestic and foreign investors. Such approaches serve to alleviate any poverty threats since the continuous investments lead to i ncreased employment opportunities (OECD 52). These opportunities also translate to increased per capita incomes, and innovativeness due to the presence of investment capital amongst the country’s population. On the contrary, South Africa lags behind in establishing the desired political climate for the domestic and potential foreign investors. ... Mainly, the challenges exceedingly affect the population’s living conditions and their ability to reinvest their extra-earned incomes due to the presence of limited opportunities, antisocial practices, and poor rate of technological advancement. The country is characterized by high unemployment, high crime rates, and high poverty levels (Abegunrin 49), with a third of its population living in less than a dollar per day and high levels of inequalities. The aspect contrasts broadly with the Canadian economical and social welfare since the two countries differ in compared to Canada. As Canada, South Africa is also characterized with diverse cultures and traditions. South Africa has a population of over 50 million people while Canada has a population of approximately 35 million people most of whom, are immigrants and form the country’s work force. Therefore, the issue of population poses as a significant drawback since the high rates of poverty levels, and subsequent popula tion increases lead to increased challenges with the rate of illiteracy continuing to grow profusely (OECD 70). Since the government fails to grant vital social projects, the South African community continues to struggle with poverty thus; the factors serve to propel increases in crime rates and reduced rates in GDP and GNP growth despite the availability of abundant resources. Canada’s population has risen unbelievably, approximately 35 million in 2013 and this increase in population is highly accounted for by the increased levels of immigration as the native-born citizens accounting for only a tenth of the population increase. Canada’s Immigration Program indicated that Canada had the highest per capita immigration in the world. Approximately 6 million