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1) Alkali metals are stored in oil to minimise reaction with oxygen or water, it's a physical barrier towards air but the alkali metals still gradually corrode a traces of oxygen and water diffuse through. The reaction of alkali metals with water gets more violent for elements lower in the group e.g. (Li < Na < K < Rb < Cs). Adding them to water will cause an explosion due to the extremely exothermic nature of reaction, and can be rather dangerous and some alkali metals can react violently with just moisture in the air. Most of the alkali metals float on the top of the water, depending on how big the alkali metal is determines the size of the reaction this is because they're less dense that water itself and also during the reaction the alkali metals give of hydrogen gas which is quite flammable. Alkali Metal + Water » Metallic Hydroxide + Hydrogen

The francium would be like any other alkali metal, it would be very violent like the other alkali metals.

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Q: What are the reactions with alkali metals and water like?
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Are Alkali metal hydroxides and alkaline earth metal hydroxides strong metals?

Alkali metals are metals in Group I (far left column) such as Lithium, Sodium, Potassium, etc. They have a valence of -1.Alkali Earth Metals are in Group II (second column from the left) such as Berylium, Magnesium, Calcium, etc. and have a valence of -2.One Hydroxide (OH-) ion will form an ionic bond with group 1 elements {Like NaOH }, and two Hydroxide ions will form an ionic bond with group 2 elements {like Ca(OH)2 }


What are alkali and alkaline earth metals used for?

If you are in the same chem textbook as I am, (Chemistry, Connections to Our Changing World, from 1997) then the answer can be found on pg. 195, a page before the aforementioned question. If you aren't using this textbook, here's a summery of what it says: Magnesium and aluminum can be combined to form an alloy, which is used in things like car wheels, aircraft, tools, and furniture. It doesn't react with cold water, but it does react with hot water or steam. Calcium carbonate is found in chalk, marble, and limestone.


Why are the groups alkaline earth metals halogens called so?

They react with water like the alkaline metal but does not change or melt with fire.The alkaline part of the name comes from the fact that these metal form alkaline solutions, when they react with water. The earth part was added to differentiate these from the group one metals. Alchemists called them earth metals because they though that their oxides were new elements.In the middle age the oxides of these metals (metals which are not known in time) are called alkaline earths: alkalinebecause these oxides react with water forming an alkaline solution and earths because in the past non-metallic compounds were called earths.


Compare the solubilities of the lead compounds with those of the alkaline earth metals How are the solubilities similar and different?

Look at the position of Pb in the periodic table and the postion of the Alkali Earth metals. Alkali Earth Metals are in noble-gas configuration when they are doubly charged cations. Lead however is on the right hand side, and would like to have more electrons to get into that stablest configuration; making the bonds in lead-compounds more covalent -and stronger- in nature. Insoluble compounds have lattice enthalpies higher than the enthalpy of solvation. Now since Alkali Earth metals like to be in ionic states; their compounds will dissolve in general more easily than the same compounds with lead, since usually the lattice energy of lead compounds is much higher (In case of insoluble compounds higher than the energy that would be released upon solvation, which thus doesn't occur).


Does the stomach contain an acid or alkali?

YES, IT WILL CONTAIN AN ACID LIKE HYDROCHLORIC [Hcl]

Related questions

How has hydrogen gas been made through chemical reactions?

strong acids like sulphuric acid reacted with metals like zincwater reacted with alkali metalselectrolysisetc.


What name is given to group one elements in the periodic table?

The elements in Group 1 of the periodic table are called the alkali metals. The elements that make up this group are Lithium, Sodium, Potassium, Rubidium, cesium, and Francium. Hydrogen is not in this group even though it may look like it. The alkali metals are highly reactive metals that do not occur freely in nature. These metals have only one electron in their outer shell making them ready to lose that one electron in ionic bonding with other elements. Some other cool facts are: --Like other metals, alkali metals are malleable, ductile, and are good conductors of heat and electricity --The alkali metals are softer than most other metals. --Alkali metals can explode if they are exposed to water.


Is a coin an alkali?

No, a coin is not an alkali. It's a metal or metal alloy. Alkali metals are very reactive and coins are not made of them. These metals react with the water in air, so they are stored beneath a liquid they do not react with (like kerosene), or in a gas they will not react with (like an inert gas). Making coins out of alkali metals would give entirely new meanings to "depreciation" and the phrase "money burns a hole in my pocket."


What elements are like magnesium?

they are alkali earth metals.


Does water participate in chemical reactions?

Yes. Water can participate in chemical reactions. The alkali metals and the akaline earth metals, for example, react with water in much the same way that they do with most acids, replacing hydrogen in the chemical formula and releasing hydrogen gas as a product. With most of the alkali metals this reaction is violent, even explosive.


What does alkali metals form when it react with water?

The alkali metals and water form the alkali metal hydroxide and hydrogen gas. 2Alk + H2O =&gt; 2Alk OH + H2^ Note that there is a "2" in front of the "Alk" (which is alkali metal). All the alkali metals are in Group 1 of the periodic table, and they all have a +1 valence. They will combine with water in a 2-to-1 ratio. The result will be 2 of the alkali hydroxide molecules and H2 with the "up arrow" to indicate that hydrogen gas is being liberated in the reaction.


Does alkali metals conduct energy?

Alkali metals are good conductors of electricity, though they are not as conductive as transition metals like copper or silver. They are also fairly good thermal conductors.


In what way is hydrogen like the alkali metals?

Hydrogen has a single valence electron, just like the alkali metals. Unlike them, however, hydrogen prefers to covalently bond instead of forming an ionic bond.


Which all metals have low melting and boiling points?

Mercury, all alkali metals (like Sodium) and alkaline-earth metals (like Calcium).


Hydrogen is grouped with alkali metals because it?

it has one electron in its outer energy level like all alkali metals


Is hydrogen a alkali metal or alkaline metal?

Alkali metals can be substituted for hydrogen. Any of them. They include lithim (Li), sodium (Na), potassium (K), rubidium (Rb), cesium (Cs) and francium (Fr). The alkali metals are in group one of the periodic table of the elements, and are all stacked up in the column below hydrogen. All the alkali metals are all organized with a lone electron in their outer most shell, or valence shell (in the neutral atom) and all of the alkali metals would like to loan out that electron to anything that would like to borrow it. It turns out that the reactivity of alkali metals are least to greatest from the top of the column to the bottom. This is because of electron screening. A link to our friends at Wikipedia is provided.


What are alkali and alkaline metals used for?

they are used for metal-like things,