Magnesium

Question: magnesium? Two equal masses of magnesium are placed in containers of pure water at the same temperature. Sample B reacts more quickly with the water than sample A. This is because _____. 1. Sample B has been broken into smaller pieces than sample A, so there is more surface area for the water molecules to collide with, therefore leading to more reactions. 2. Sample A has been broken into smaller pieces than sample B, so there is more surface area for the water molecules to collide with, therefore leading to more reactions.

Answer: 1 A large surface area means greater chance of reaction

Question: MAGNESIUM???????????????? k does anyone wanna make a 5 page essay and poster on magnesium for me by tomorrow??....anyone.......you would totally get the best answer if u did

Answer: heck no who would do that

Question: MAGNESIUm? IS THE STUFF INSIDE OF THOSE LITTLE PAPER FIREWORKS THAT YOU THROW ON THE GROUND AND THEY POP PLZ LT ME KNOW! is it the same stuff thats inside the fireworks that you throw on the ground and they pop?

Answer: Magnesium metal particles can catch fire very easily, and burn with bright white light. Magnesium strips were used in the second world war to identify places from aeroplane. Magnesium powder, Aluminium powder, Oxidising agents like Nitrates and Potash, Sulphur are other components of fireworks. Colour in the sparks of fireworks can be produced using some other inorganic salts or compounds. Lithium gives Red, Boron for Green and so on.

Question: How to Seperate Magnesium Hydroxide from a Solution of Water and Na2SO4? Does anyone have any suggestions regarding how to seperate magnesium hydroxide from a solution of water and sodium sulfate? The magnesium hydroxide is supended in the solution, and is often called Milk of Magnesium in this form. It was formed by mixing a solution of sodium hydroxide with a solution of magnesium sulfate. Thanks.

Answer: As you have said, magnesium hydroxide is suspended in the solution. This means that magnesium hydroxide is insoluble in water. ALL Group 1 and ammonium salts are soluble in water. So, Na2SO4 will dissolve in water. Hence to separate magnesium hydroxide, you stir the solution first to ensure that all Na2SO4 have dissolved in water. Now, you're left with a solution of Na2SO4 with Mg(OH)2 settled at the bottom. Filter the solution. Mg(OH)2 will be obtained as residue and Na2SO4 will be obtained as filtrate. There you go.

Question: What was the mass percentage of the magnesium nitride in the mixture obtained after the initial burning? When magnesium metal is burned in air, two products are produced. One is magnesium oxide, MgO. The other is the product of the reaction of Mg with molecular nitrogen, magneisum nitride. When water is added to the magnesium nitride, it reacts to form magnesium oxide and ammonia gas. (c) In an experiment a piece of magnesium ribbon is burned in air in a crucible. The mass of the mixture of MgO and magnesium nitride after burning is 0.470 g. Water is added to the crucible, further reaction occurs, and the crucible is heated to dryness until the final product is 0.486 g of MgO. What was the mass percentage of the magnesium nitride in the mixture obtained after the initial burning? I know that the equations are: Mg3N2 + H20 --> MgO + NH3 4 Mg + 1/2 O + N2 --> MgO + Mg3N2 My test is tomorrow and I think I will have a problem somewhat similar to this one. I just don't understand part (c). Can someone show me the steps and answer to this problem. Thank you soo muchh!

Answer: From the final mass of the MgO, calculate the number of moles of Mg that are present. Then use a little algebra. 3 times the number of moles of Mg3N2 plus the number of moles of MgO equals the total number of moles of Mg. Convert all of the moles to the appropriate mass, and solve for the number of moles of Mg3N2. I leave the solution as an exercise for the student.

Question: What kind of magnesium powder is used in homemade flash bangs and where can I get it? You know the kind of magnesium powder in flashbangs? What kind is that? I get mixed up because theres like magnesium oxide, magnesium carbonate, and I don't know what to put in my homemade flashbang. And where can I get it? Thanks!

Answer: Making "flash bangs" is highly illegal. It's a federal crime. Flash powder is considered a high explosive by the BATFE therefore it requires a BATFE Type 20 High Explosives Manufacturing License in order to legally make it. Flash powder is an extremely dangers, high flammable, friction sensitive and explosive powder that one should not be playing with unless you know exactly what you're doing. If you don't even know what different types of magnesiums are and what type you need don't even think about experimenting with flash. I'm in the fireworks business and I know many people who knew the dangers of flash, knew what they were doing and lost fingers, limbs or their life. Also since making flash powder and illegal fireworks is a federal crime getting caught gets you federal jail time. It can also get you labeled as a possible terrorist with "bomb making" materials, this has happened. I would suggest going to your local firework store, buying some firecrackers and enjoying them as they are and not trying to make your own.

Question: What's the difference between magnesium powder and magnesium ribbon in sulfuric acid? I made magnesium sulphate by putting magnesium ribbon into sulfuric acid. What would happen to the rate of reaction if I had used magnesium powder instead?

Answer: Your reaction would have been intenser , depending on he H2s04 concentration you could have created an explosion.. the total surface of powder being in contact with the liquid is far greater than the surface of the ribbon. Also depends how fine your powder is.

Question: How would the empirical formula of magnesium change if not all the magnesium is burned? In a magnesium and oxygen reaction, how would the empirical formula of magnesium have been affected if all the magnesium in the crucible had not burned? Please help!! Thanks.

Answer: if not all the magnesium is burned that means, it means that all the Oxygen got used up and the magnesium didnt. Which means that we are only left woth mg and NO o2......... I would assume that the empirical formula Mg: o= 1:0

Question: How many grams of Magnesium nitride can be made by mixing 35g of magnesium with 15 g of nitrogen? Magnesium nitride is made by combining magnesium and nitrogen. How many grams of Magnesium nitride can be made by mixing 35 g of magnesium with 15 g of nitrogen? What is the percent yield if actually 35g of Magnesium nitride is isolated? How many grams of the excess reactant remain after the reaction? Please show your work. Thanks.

Answer: moles Mg = 35 / 24.305 g/mol=1.44 moles N2 = 15 g / 28.0134 g/mol=0.535 3 Mg + N2 = Mg3N2 Mg is the limiting reactant ( 0.535 x 3 =1.61 moles are needed) moles Mg3N2 = 1.44 /3 = 0.484 mass Mg3N2 = 0.48 x 100.8 g/mol=48.4 g % yield = 35 x 100 /48=73 moles N2 required = 1.44 /3 = 0.48 moles N2 in excess = 0.535 - 0.48 =0.055 mass N2 in excess = 0.055 x 28.0134 =1.5 g

Question: What kind of magnesium supplement helps with stimulant tolerance? I bought some magnesium supplements because I seem to be getting a tolerance for my daily Adderall. Does it have to be a certain 'kind' of magnesium or be in a certain form to help reverse the tolerance?

Answer: Well avoid magnesium oxide as this is poorly absorbed. Take a chelated form such as magnesium citrate, glycinate or malate. These are far easier for the body to absorb. And the best way to take it is in combination with calcium or together alongside calcium in the ratio 1:2 magnesium:calcium as this is the optimum ratio found in nature, in dolomite [rocks] and our own body. Magnesium and calcium both support the nervous system. Taking vitamin C alongside magnesium may help with its absorption. More info regarding magnesium absorption: http://www.ehow.com/how_3954_absorb-magnesium-supplements.html Bathing in epsom salts will certainly boost your magnesium levels as some of the magnesium in epsom salts is absorbed through the skin. Epsom salts baths are used by many with ADD/ADHD. You should also be taking fish oil. Read these "Fish oil 'calms children better than Ritalin'" http://www.dailymail.co.uk/health/article-391503/Fish-oil-calms-children-better-Ritalin.html "Omega 3 Fish Oil EPA and DHA Explained": http://addadhdadvances.com/fishoil.html "Alternative ADHD Treatment: Fish Oil": http://www.additudemag.com/adhd/article/1684.html Read these also: "Magnesium Deficiency Linked to ADD and ADHD in Children": http://www.naturalnews.com/026782_magnesium_food_adhd.html Magnesium: an Overview: http://www.umm.edu/altmed/articles/magnesium-000313.htm On the latter article, make sure you read the bit about ADHD and depression. If you have developed a tolerance, you should discuss that with your doctor, and wean yourself off the Adderall with their approval. Take an article on fish oil with you and say you want to try that and also magnesium as an alternative to meds. If you are in the UK, you can certainly get fish oil on prescription under the label Omacor. It is prescribed primarily to heart patients but that does not mean some doctors won't prescribe it for alternative uses. Avoid food additives, especially aspartame and monosodium glutamate [MSG]. Check labels. "Flavour Enhancer" is nearly always MSG. Taking a B vitamin supplement [time release formulation] may also help as it does support the nervous system too. Avoid caffeine if it makes your symptoms worse. Hope that helps. Good luck.

Question: What mass of magnesium oxide is produced when 0.33g of magnesium is heated? Also, what mass of magnesium oxide would be produced if 0.66g of magnesium oxide is heated? Would doubling the magnesium give twice as much as magnesium oxide? Would appreciate any help.

Answer: Moles Mg = 0.66 g/ 24.3050 g/mol=0.027 2 Mg + O2 = 2 MgO the ratio between Mg and MgO is 2 : 2 ( or 1 : 1) moles MgO = 0.027 mass MgO = 0.027 mol x 40.304 g/mol= 1.1 g

Question: What is the concentration of the magnesium nitrate after the reaction? 1.93 mL of 0.15 M magnesium hydroxide is added to 57 mL of 0.4 M nitric acid. (Magnesium nitrate and water are formed.) What is the concentration of the magnesium nitrate after the reaction?

Answer: Mg(OH)2 + 2H(NO3) --> Mg(NO3)2 + 2H2O first find the moles of each reagent Mg(OH)2: moles = (0.00193)*(0.15) = 0.0002895 moles H(NO3) moles = (0.057)*(0.4) = 0.228 moles Second, find the limiting reagent Mg(OH)2 : 2H(NO3) 1 2 2H(NO3) : Mg(OH)2 1 1/2 2 x 0.0002895mol Mg(OH)2 = 0.000573mol 2H(NO3) therefore limiting reagent is Mg(OH)2 Next find the number moles of Mg(NO3)2 0.0002895*(1mol Mg(NO3)2 /2mol Mg(OH)2) = 0.00014475 mol next find the molarity of Mg(NO3)2 0.00014475mol / 0.05893 L = 0.00246 M

Question: How does Magnesium Metal Exist if Magnesium is not found alone in nature? In a lab I'm doing for school it said that magnesium metal does not exist in a nature in an uncombined state. How then, is magnesium metal possible? Sorry if this question is obvious, but I'm a beginner with chemistry.

Answer: Free, pure magnesium metal just sitting on the ground does not exist, and neither does it usually exist artificially. It is highly reactive to oxygen, and will combust on contact. It burns very bright and very hot, which is why it's used in flares, including a component of the decoy flares used by military aircraft to confuse heat-seeking missiles. Instead, it's alloyed and mixed with other metals, primarily with aluminum, because it is even less-dense than aluminum, but much stronger, which makes it ideal for applications such as use in aeronautics. If you have ever been to a hiking-camping-outdoors shop, and seen those pieces of dull, silver-ish metal about the size of a cigarette lighter, except as a rectangular box, these are sold as fire-starters. You just scrape your field knife across it, and it will light your tinder. Why? Because it's a magnesium mix, stabilized by a compound that surrounds it and keeps it from spontaneously combusting (no, I don't know what the stabilizer is). What you're doing is flaking off a piece of magnesium with an exposed metal piece that does light, lands on your tinder, and starts a fire. I've used it, and it works pretty well, though I prefer the old-fashioned flint-and-steel. That's why you don't see pure magnesium. This is also why you don't actually see pure iron. It is almost as reactive. When you do pick up a lump of iron, it will always be coated with a molecular-thin layer of iron-oxide -- rust. So when you hit it with another hard object and it sparks, what you're seeing is a raw piece of iron face combusting in contact with oxygen.

Question: How can magnesium metal be used to distinguish between an acid and a base? We did a lab in science and i need to find out what solutions where acidic, and which were basic (Alkaline) we put pieces of magnesium metal into each Solution, one of them fizzled and bubbled, one sank, and one floated.

Answer: active metals react with acids to produce hydrogen gas. magnesium is an active metal hydrogen gas makes the magnesium float it does not react with the base

Question: What is the difference between Magnesium and Magnesium Oxide? Yet, still in my search for alternative routes in hypertensive treatment, i have come to another "hiccup" I need to know the difference between these two so I can see which to purchase and see if the oxide helps more then the regular magnesium pills i have been taking.

Answer: Check to see what the magnesium pills really contain. Magnesium is also given for migraines. Some antacids are magnesium based. They are carbonates MgCO3 or hydroxides Mg(OH)2. It is a laxative. Magnesium is just the metal magnesium, Mg Magnesium oxide is MgO, a magnesium atom that has given 2 electrons to an oxygen. I assume that you have read the articles on Yahoo, and Google re hypertension. The body can obtain the magnesium from a magnesium compound.

Question: What foods are high in magnesium and potassium? And what are all the benifits of these nutrients? I've heard that magnesium is really good for you as far as helping alleviate sterss, and potassium is a good thing to gave along with it... Can someone recommend some foods rich in magnesium and potassium please and maybe explain all the benifits of these nutrients. I have always had alot of anxiety my whole life and I believe it is due to bad diet , so I really believe that a proper diet will help me. Thanks for your time.

Answer: I highly recommend a low carb way of eating (<9grams carbs per hour) to normalize hormones and allow your adrenals to heal. Nuts & seeds are high in magnesium & nutritional value. Avocado & bananas are high in potassium. I also recommend a salt substitute which is a cheaper potassium supplement. Ground flax seed (2-4 Tbsp) 1/4 cup water, artificial sweetener, mix in a raw egg - let sit 10 min. to absorb liquid, put some cream cheese in the middle & nuke 2 minutes. Suggested for daily fiber needs. Flax seed - 3.5oz - 98% Magnesium - 39% Potassium - 534 cal - 65% calories from fat (high in Omega3 fatty acids) for 2gram carb - 27g fiber 109%DV - 26% DV Calcium - 64% Phosphorus - 29% Zinc - 61% Copper - 124% Manganese - 36% Selenium - 32% Iron - 110% Thiamin - 9% B2 Riboflavin - 15% B3 Niacin - 24% Vit.B6 - 22% Folate - 10% Vit.B5 Pumpkin seeds - 3.5oz - 134% Magnesium - 23% Potassium - 541 cal - 71% calories from fat for 14gram carb - 4g fiber 16%DV - 4% DV Calcium - 117% Phosphorus - 50% Zinc - 69% Copper - 151% Manganese - 8% Selenium - 83% Iron - 14% Thiamin - 19% B2 Riboflavin - 9% B3 Niacin - 11% Vit.B6 - 14% Folate - 3% Vit.B5. Sunflower seeds - 3.5oz - 81% Magnesium - 18% Potassium - 584 cal - 74% calories from fat for 11gram carb - 9g fiber 34%DV - 8% DV Calcium - 66% Phosphorus - 33% Zinc - 90% Copper - 97% Manganese - 76% Selenium - 29% Iron - 99% Thiamin - 21% B2 Riboflavin - 42% B3 Niacin - 67% Vit.B6 - 57% Folate - 11% Vit.B5. Brazil Nuts- 3.5oz - 94% Magnesium - 19% Potassium - 656 cal - 85% calories from fat for 4gram carb & 16% DV Calcium - 73% Phosphorus - 27% Zinc - 87% Copper - 61% Manganese - 2739% Selenium - 13% Iron - 41% Thiamin - 2% B2 Riboflavin - 1% B3 Niacin - 5% Vit.B6 - 5% Folate - 2% Vit.B5.- 29% Vit.E Almonds- 3.5oz - 67% Magnesium - 20% Potassium - 575 cal - 72% calories from fat for 10gram carb & 26% DV Calcium - 48% Phosphorus - 21% Zinc - 50% Copper - 114% Manganese - 4% Selenium - 21% Iron - 14% Thiamin - 60% B2 Riboflavin - 17% B3 Niacin - 7% Vit.B6 - 12% Folate - 5% Vit.B5.- 131% Vit.E Raw nuts are living and full of the energy of life and should be capable of building a tree. Roasted nuts are dead & they may still provide some nutrients, but none can compare to the nutrients and enzymes from a live food. Unfortunately, raw does not necessarily mean living. For example - Commercially sold almonds are now required to be pasteurized turning a live food into a dead one. You can not sprout an almond that has been irradiated. I buy my almonds direct from growers off ebay. I get 20# for less than $3# including shipping. April 6, 2007 - Small-scale farmers, retailers, and consumers are outraged over a new federal regulation that will require all almonds grown in California to be sterilized with various “pasteurization” techniques. The rule, which the USDA quietly developed in response to outbreaks of Salmonella in 2001 and 2004, traced to raw almonds, mandates that all almonds undergo a sterilization process that includes chemical and/or high-temperature treatments. The only exemption to these new regulations will be ... small-scale growers who can sell truly raw almonds but only direct to the public Highly nutritious foods you should consider: sprouts, spirulina, paprika, turnip greens, mustard greens, kale, garlic, brewers yeast, raw almonds, ground flax seeds & chia seeds. Paprika - 1 Tablespoon = 20 cal = 71% DV Vit.A - 8% DV Vit.C - 10% DV Vit.E - 14% DV Vit.B6 - 9% DV Iron & others way too many to list. Brewer's Yeast Powder - Two tblspns. provide a whole lot of nutrition! 158% RDA Chromium - 90% Selenium - 88% B2 - 80% B1 - 50% Copper - 50% Niacin - 40% B6 & others way too many to list. It tastes peanutty to me. I have been adding it to sesame butter, a lil raw honey, coconut cream & coconut oil, powdered whey and tastes like peanut butter to me!