what family of elements reacts violently with water?
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What elements will react violently with water? Group 2 elements, the Alkaline earth metals, become a +2 ion, and combine to make (OH)2 metal hydroxides. Any element in the first column (Group 1) of the periodic table will react violently with water. They get more explosive as you go down the column, so that means lithium, sodium, potassium, rubidium, caesium and francium will be more reactive, in that order. The elements in the second column (Group2) react less violently with water. And like the Group 1 elements, their reactivity increases as we go down the column. <br /><br />When added to water the Group 1 elements, the Alkali metals, becomes a +1 ion, and the water forms OH- (creating the metal hydroxide) and H2 gas.
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What are the most reactive families on the periodic table and why are they the most reactive? The alkali metals Lithium, Sodium, Potassium, Rubidium cesium and Francium is the most reactive group of metals. They are this way because they only need to lose one electron to gain a stable octet which is very favorable energetically. The most reactive group of non-metals is the halogens, Fluorine, Chlorine, Bromine, Iodine and Astatine. These are the exact opposite. They are extremely reactive because they only need to gain one electron to gain a stable octet which is again, highly energetically favorable.
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Arsenic (As) and water Elementary arsenic normally does not react with water in absence of air. It does not react with dry air, but when it comes in contact with moist air a layer is formed. The layer has a bronze colour, and later develops a black surface. An example of an arsenic compounds that reacts strongly with water is orpiment.
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- Reacts on exposure to water (moisture) with (some) metals: release of highly. flammable gases/vapours (hydrogen). Decomposes on exposure to temperature rise: release of. toxic and corrosive gases/vapours (chlorine, hydrogen chloride).
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- Straight sodium is very reactive. When it contacts water, it quickly reacts according to the equation 2Na + 2H2O -> 2NaOH + H2. You may recognize NaOH by it's common name - ly…e. Chlorine gas is likewise very reactive. If you get the two of them together, however, you get 2Na + Cl2 -> 2NaCl + a lot of heat.
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Sodium - Na Sodium reacts quickly with water, and also with snow and ice, to produce sodium hydroxide and hydrogen. When it’s exposed to air, metallic sodium recently cut looses its silvery appearance and acquires an opaque grey colour due to the formation of a sodium oxide coating.
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- Now let's see another reaction of the alkali metals, the reaction with water. We'll start with Lithium. The metal floats on the water and reacts with it, giving off Hydrogen gas. Now for Sodium, the same sort of thing happens, although the reaction is a bit more vigorous.
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Please read the following disclaimer carefully All alkali metals are strong reducing agents that react strongly with water, including the water in your skin! Wear safety goggles. Avoid touching the metal samples. The reactions of sodium and potassium with water can be quite vigorous.
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- Magnesium reacts with water to produce hydrogen and a lot of heat. Metallic magnesium reacts only slowly, but magnesium vapour, produced when Mg burns, reacts extremely quickly due to the high temperature and efficient mixing, and produces heat very rapidly.
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Astatine, (Chemical Element, Symbol At, Atomic Number 85) Astatine can also react with hydrogen to form hydrogen astatide, which when dissolved in water, forms hydroastatic acid. Astatine is the least chemically reactive of the halogens and exhibits the most metallic properties of the halogen group.
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- Only metals above magnesium react with cold water to form the metal hydroxide and hydrogen. Choose an element for this reaction: | Potassium | Sodium | Calcium |. Reaction with hot water. Magnesium reacts slowly with hot water to give hydrogen and magnesium hydroxide.
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Potassium: reactions of elements Reaction of potassium with water. Potassium metal reacts very rapidly with water to form a colourless solution of potassium hydroxide (KOH) and hydrogen gas (H 2). The resulting solution is basic because of the dissolved hydroxide. The reaction is exothermic.otassium metal reacts very rapidly with water to form a colourless solution of potassium hydroxide (KOH) and hydrogen gas (H 2).
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What element explodes when placed in water? All elements of the alkali metals (lithium [Li], sodium [Na], potassium [K}, rubidium [Rb], cesium [Cs] and francium [Fr]) group will react violently when placed in water. The further from the top, the more violent the reaction will be. This happens due to their very high reactivities and thus, they are kept in kerosene oil.
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What chemical when mixed with water creates fire? Not only does it display all the elements known on earth but it also shows an unimaginable amount of tendencies which are used in chemistry. Very often, chemicals in the same column will react very similarly to each other. To answer your question, all the elements in the orange column will react violently to water. The further down the column, the more violent it'll react. Of course, these aren't the ONLY things that will cause a flame when exposed to water.
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What is the most reactive element? The group 1 elements in the periodic table are known as the alkali metals. They include lithium, sodium and potassium, which all react vigorously with air and water. The reactivity of the alkali metals increases down the group.Lithium is the least reactive and potassium is the most reactive of the three. The hydrogen ignites immediately during the reaction between potassium and water with the potassium producing a lilac coloured flame. Page: 1  1. 2  2. 3  3. 4  4.he reactivity of the alkali metals increases down the group. Lithium is the least reactive and potassium is the most reactive of the three. The hydrogen ignites immediately during the reaction between potassium and water with the potassium producing a lilac coloured flame. Page: 1  1. 2  2. 3  3. 4  4.
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Iodine: reactions of elements Iodine, I 2, reacts with water to produce hypoiodite, OI - . The position of the equilibrium depends very much upon the pH of the solution.
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Elements Nitrogen, with its 5 outermost electrons, interacts with hydrogen atoms in a ratio of 1:3, forming ammonia (NH 3). Oxygen and sulfur, with their 6 outermost electrons react with hydrogen to form water (H 2 O) and hydrogen sulfide (H 2 S).
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Groups : Group 17 is a family of elements known as the halogens. The word halogen means salt-former. The halogens form salts when they react with a metal. Halogens exist in a variety of states at room temperature. Fluorine and chlorine are gases, bromine is a liquid, and iodine and astatine are solids. All of these elements exist as diatomic molecules in their gaseous state.
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What is an Inventory System? An inventory system provides the necessary knowledge both for the warehouse worker to perform daily tasks and management to have product and financial insight. Improve Your Bottom Line You'll spend less time on inventory stock control, and reduce understock and overstock.
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- Crumbles on exposure to moist air. Reacts with water to form corrosive calcium hydroxide, with evolution of much heat. Temperatures as high as 800° C have been reached with addition of water (moisture in air or soil). The heat of this reaction has caused ignition of neighboring quantities of sulfur, gunpowder, wood, and straw [Mellor 3: 673 1946-47].
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What Is Formed When a Metal Reacts With Water? A metal hydroxide and hydrogen gas form when a metal reacts with water. The metal hydroxide is a strong base. Reactions between a metal (especially an alkali metal) and water usually produce a violent scene. Continue Reading.
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- Reaction of metals and water (General) A few very reactive metals will react with cold water. Potassium's reaction is the most violent that you are likely to encounter in the science lab. Potassium, sodium, lithium and calcium all react very fast when placed in water. The products of the reaction in each case are a metal hydroxide (froming an alkaline solution) and hydrogen gas. Magnesium requires the water to be in the form of steam for a clearly observable reaction to take place.
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What Metals React With Water to Produce Hydrogen? When sodium metal reacts with water, the resulting heat melts the metal almost immediately into a grey-silver ball. The hydrogen gas evolved during this reaction propels the ball rapidly across the surface of the water, leaving a white trail of sodium hydroxide that eventually dissolves into a clear solution.
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Alkali Metals to the Left But wait. That element is NOT in the family. When we told you about families, we said that they were groups of elements that react in similar ways. Hydrogen is a very special element of the periodic table and doesn't belong to any family. While hydrogen sits in Group I, it is NOT an alkali metal. Now that we've covered that exception, the members of the family include: lithium (Li), sodium (Na), potassium (K), rubidium (Rb), cesium (Cs) and francium (Fr). As with all families, these elements share traits. They are very reactive.
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- The metal is rapidly attacked by fused alkali oxides and by peroxides and will react with fluorine and, at red heat, with chlorine. On heating, platinum combines directly with elemental phosphorus, silicon, lead, arsenic, antimony, sulfur, and selenium, a fact that influences the use of platinum laboratory equipment. In keeping with the other members of the platinum group, the metal shows a fairly strong tendency to form complex ions.
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Sodium in Water Chemistry Demonstration The reaction is especially vigorous when warm water is used. The reaction may spray out molten sodium metal and the hydrogen gas may ignite so it is imperative that proper safety precautions be used when conducting this demonstration.