What happens when sodium is in water?
We all are well known with the fact that sodium is kept/preserved in kerosene so as to avoid its direct contact with the air.This is due to the high reactivity of Na metal in the air.Sodium is a soft metal and we can easily cut it with a knife. Sodium gives out a vigorous reaction when comes in contact with humidity/water molecules.The reaction is:[math]2Na+2H_2O →2NaOH+H_2[/math]When sodium reacts with water, sodium hydroxide is formed hydrogen gas as a byproduct that gets burnt with a bright flame….making the reaction highly exothermic.The solution formed after the reaction is basic in nature due to the dissolution of NaOH in water.This is what happens when Na is reacted with water:Thank you!!
How many elements are in the periodic table?
There are 92 natural elements in the period table from hydrogen to uranium and currently 26 transuranic elements have been created/observed.The natural elements (hydrogen to uranium) mostly have stable isotopes (see below) and they all exist in nature. Each element is characterized by the number of protons in the nuclei of its atoms. Protons are large particles with positive charge. Hydrogen atoms have 1 proton and all uranium atoms have 92 protons. The nuclei of atoms as well as containing protons also contain neutrons. These are like protons but have no charge. Most hydrogen atoms have no neutrons and a few have 1 neutron and fewer still have 2 neutrons. These different versions of hydrogen atoms are known as isotopes.Some of these isotopes are radioactive which means the neclei can change to different nuclei be emitting radiation and in doing so change the number of protons in their nuclei (radioactive decay). These are known as unstable isotopes. Other isotopes can't do this and they are known as stable isotopes.Most elements from hydrogen to uranium have one or more stable isotopes. These persist for ever or until they are hit by very energetic radiation capable of changing their nuclei. Some of these have no stable isotopes but they decay so slowly they still exist millions of years after they were first created so they exit in nature.Elements heavier than lead (bismuth to oganessum) have no stable isotopes and over time they all change into a different element while emitting radiation. This is one reason why elements heavier than lead tend to be rarer.The elements heavier than helium were created in supernovae which are hot enough to slam nuclei together hard enough to make them fuse into larger nuclei with more protons and neutrons. The main reason why elements heavier than uranium are not found on earth is that the supernova which created the elements in our solar system was not hot enough to create them. Planets elsewhere in the universe may have naturally occurring elements heavier than uranium if the supernova which created their elements was hot enough.Thanks to Stuart Herring for information about unstable elements lighter than uranium.
You're tasked with robbing Fort Knox with only 3 items. What items do you choose?
I wouldn't accept. I would die. Immediately. If I gave it some effort I might be able to wound or kill two or three Americans guarding the complex. Not something I want to do.However, as a pure thought experiment:First, I am going to assume that logistical resoruces are infinite and do not conform to conventional battle rules.Mid-air refueling while engaged in combat is (for my answer) now not only possible but so easy you can do it blindfolded.Weapons can be instantly reloaded while on target and in the air.The AgustaWestland variant of the AH-64D Apache Longbow attack helicopter.The AH-64 is a beast.It is the helicopter version of Neo in the lobby shootout of The Matrix. With one exception: it is designed to get shot (a lot) and keep fighting.I chose the British version of the Apache because it has been modified from the American verson.The Westland has upgraded Rolls Royce RTM 322 engines which put out 30 percent more power than the Boeing. Flights are longer, faster, higher and with more weapons.Fort Knox (the military base) used to host an armor division but now it is host mostly to support and training units.Weapons load out:30-mm M230 cannon with 1,200 rounds of High Explosive Dual Purpose rounds. Armor-piercing, fragmentation and an incendiary charge will make light work of everything but heavy armor (battle tanks).CRV7 rocket pods featuring 76 (full load) Flechette rockets. Anti-personnel/vehicle. Each contains 85 five-inch-long tungsten darts. Kenetic penetration can drive through a half inch of steel. The explosive zirconium incendiary sticks to everything and torches itAs an aside. The darts only have to pass within a few feet of you to kill you. The shockwave is strong enough to tear the flesh off of your bones within a few feet.In a fight this bird is going to go Winchester (fully expend it's ordinance) a few times at least. It will be available for immediate support during the action and escort on the exfil.This guy.The Treasury Secretary and select others visited in 2017. Acting as a PR stunt Trump has the best reason for getting close to the gold without being stopped.One you get to the vault it is likely to be look but don't touch. Once you touch everything goes bad in a hurry. Gold is heavy and there is a lot of it.Enter these guys.The masters of logistics. No matter which way you turn it they will still need the President and a gunship.And, I'm still going to die.
What is the most insanely brutal, devastatingly injuring, and generally "overkill" ammunition for machine guns and shotguns respectively?
Ok, let's start with machine guns. A machine gun doesn't fire some exotic cartridge that you couldn't find for a bolt action or semi-automatic. Lets use the M249 SAW as an example. It fires a 5.56x45mm cartridge which is similar to a .223 Remmington. You could conceivably hand load specialty bullets such as https://libertyammo.com/product/.... This projectile fragments when it enters a fluid medium, causing +/- 9 shards to disperse in a star pattern while the remaining base continues onward. Now imagine this with a fire rate up 550 rounds per minute.Now shotguns offer a whole new level of lattitude. As long as we are not concerned with the longevity of the barrel, you could load up flechette rounds, which are small darts meant to shred flesh; a stack of nickles, which would just suck that much worse if it hit you broadside; glass, pebbles, etc. But what I think would be worse would be the Dragon's Breath shell. Not only will you be shot by a shotgun, but you and everything near you will be on fire.