Section A (Answer ALL questions in this Section.) 1. Rubidium (Rb) and potassium belong to the same group in the Periodic Table. The relative atomic mass of rubidium is larger than that of potassium. (a) Explain whether rubidium is more reactive than potassium. (b) Write a chemical equation for the reaction between rubidium and water. (State symbols should be given.) (c) Suggest how rubidium can be stored safely in the laboratory. (d) Suggest ONE safety precaution for handling
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teenagers. The consequences of abuse can lead to addiction and can be very dangerous to one’s mental‚ physical‚ and financial state. Another danger is the notion that street drugs are seen as dirty drugs while prescriptions are seen as healthier cleaner drugs because they are regulated. This misguides many people who are then taken advantage of by pharmaceutical companies because of the easy access to these powerful drugs due to part-time professional drug
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You also need to brush them with a soft toothbrush made specifically for dentures twice per day. As with natural teeth‚ this will help to prevent the buildup of tartar‚ plaque‚ and stains. Avoid using abrasive cleaners for your dentures‚ as they could lead to scratching and make the dentures more susceptible to collecting food
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Option for Businesses Shipbird‚ a delivery service that allows users to employ ?on your way? technology‚ offers a cleaner‚ more environmentally-friendly option for businesses to distribute packages throughout the Bay Area. SAN FRANCISCO‚ CA‚ June 19‚ 2014 /PressReleasePing/ – Shipbird‚ a delivery service that allows users to employ ‘on your way’ technology‚ offers a cleaner‚ more environmentallyfriendly option for businesses to distribute packages throughout the Bay Area. With a focus on
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SaltsHistory: 1960s-- MDPV was developed for treatment of chronic fatigue‚ but caused problems of abuse and dependence. 1969: Boehringer Ingelheim filed a patent application for MDPV. 2005: MDPV first appeared as recreational drug. 2007: First seizure of MDPV as a recreational drug‚ by customs officials in German state of Saxony. 2008: First seizure of MDPV in the United States. 2009: MDPV became illegal in Denmark. 2010: MDPV made a controlled drug in the UK‚ Sweden‚ Germany‚ Australia
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conserve resources‚ combat climate change‚ and preserve our planet for generations to come. Here are six easy-but essential-things you can do to "green" your lifestyle (and save a little cash too:) 1. Green Clean Your House: Conventional household cleaners and bug-killers can contain as many as 200 industrial compounds‚ pollutants‚ and other chemicals. These harmful toxins are dangerous for you‚ your children and your animal companions‚ as well as harmful to the environment. Chemicals in cleaning products
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fossil fuels‚ and ultimately‚ manage completely without them. Eliminating products such as air conditioners‚ aerosol cans‚ those little foam things that come in packages‚ any kind of cleaner for electrical appliance will help keep the air clean. Stopping deforestation and re-growing forest will create better and cleaner oxygen. Forests have traditionally been grown for their timber‚ pulpwood and other wood products‚ but they also provide a range of environmental benefits such as soil protection and
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Why Is Recycling Important? Some benefits include: saving energy‚ saving land space‚ saving money‚ creating new jobs‚ reducing air and water pollution and preserving habitat for wildlife. That’s why recycling is important and you should take a closer look at your life and how your recycled materials are used in your daily life. Saves Energy It takes less energy to process recycled materials than it does to use virgin materials. For example
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concerned about their looks than men will probably ever be. Men are more concerned about their looks than they were a couple decades ago. However‚ change is not necessarily a terrible thing‚ it’s just different. If a man feels compelled to look cleaner and less gruff and withered‚ men should have the choice to do so without judgment. Also‚ just because some men are becoming more sensitive about their looks doesn’t mean all men are. There are still men who could care less about how they look and
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the house is one of the best ways to make sure you’ll always have the ingredients you need for homemade skin care products and homemade cleaning products. Cleaning with citrus fruit is just as effective as cleaning with commercial cleaners. In fact many commercial cleaners use orange oil or grapefruit extract in their products. But using fresh fruit and fresh juice will give the added benefit of a sweet‚ fresh smell and undiluted cleaning power. Berries contain a lower percentage of citric
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