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Strontium
Strontium is a chemical element with the atomic number 38 and symbol Sr. This alkaline earth metal was used primarily in cathode ray tubes in early televisions.
496 Questions
175.24 g of strontium equal how many moles?
To calculate the number of moles in 175.24 g of strontium, divide the given mass by the molar mass of strontium (87.62 g/mol). This gives you 175.24 g / 87.62 g/mol = 2 moles of strontium.
What precipipate will form from Sodium hydroxide plus Strontium nitrate?
This would be a double displacement reaction. This reaction will happen since there is a insoluble substance(solid) being formed which would be Sr(OH)2. The equation would be:
NaOH(aq) + Sr(NO3)2(aq) ---> NaNO3(aq) + Sr(OH)2(s)
Then you balance it:
2NaOH(aq) + Sr(NO3)2(aq) ----> 2 NaNO3(aq) + Sr(OH)2(s)
(aq) = aqueous solution.
(s) = solid
All Nitrates are soluble (NO3)-.
Hydroxides (OH)- are insoluble with the exceptions (salts of NH4 and alkali metals, which is group 1A).
Strontium itself does not have a distinctive smell. It is a soft, silvery metal that is typically stored under oil to prevent it from reacting with air or moisture.
How do you daraw the dot structure of Strontium Sulfide?
To draw the dot structure of strontium sulfide, start by writing the chemical formula (SrS). Strontium is in group 2, so it has 2 valence electrons, while sulfur is in group 16 with 6 valence electrons. Represent strontium with one dot surrounded by two electron pairs, and sulfur with six dots around it. Connect the atoms with a dash between them to represent the bond.
When strontium chloride reacts with silver fluoride what are the products?
The reaction between strontium chloride and silver fluoride will produce strontium fluoride (SrF2) and silver chloride (AgCl) as products. This is a double displacement reaction where the cations switch partners.
Strontium selenide is a chemical compound composed of strontium and selenium. It is a solid material that is used in the production of semiconductor materials for various electronic devices. Strontium selenide can also be used in photovoltaic applications for solar cells.
Strontium doesn't accumulate in the bone MARROW; it accumulates in the bones themselves.
Bones are primarily calcium, and strontium is in the same column of the periodic table. Since it's in the same column, it reacts in similar ways. So if you ingest radioactive strontium (strontium-90, a radioactive isotope, is a common fission fragment) then the strontium may be taken up in place of calcium and incorporated into your bones.
Radioactive bone strontium can kill off the bone marrow, which generates blood cells. This can lead to leukemia and anemia, among other blood diseases.
What type of bond will strontium and sulfur form?
Strontium is an earth metal (element #38), and iodine is a halide non-metal (element #53), therefore they would form an ionic bond. Strontium ions have a +2 charge, and iodines -1, so to form a neutral-charged compound, we need 2 iodines for every Strontium, and the chemical formula would be: SrI2.
In a nuclear fission reaction, a U-235 nucleus absorbs a neutron and undergoes fission into smaller nuclei such as Xe-143, Sr, and several neutrons. This process releases a large amount of energy and additional neutrons, which can initiate a chain reaction in a nuclear reactor.
In what form is strontium used in everyday life?
Strontium is used in everyday life in the form of strontium carbonate, which is utilized in the production of fireworks to create red colors. Strontium is also used in strontium aluminate, a compound that is used in glow-in-the-dark paints, plastics, and clothing.
Where is strontium found on earth?
In very few limited locations (most of which are European). I'll leave a Related Link to an image of a world map, pointing to locations where Strontium was mined (2005 was the most recent data available, my apologies).
When strontium nitrate is heated, it gives off a red flame due to the presence of strontium ions. This flame test is commonly used in chemistry to identify strontium compounds.
Does magnesium have a greater first ionization energy than strontium?
About twice as large, which is not that much at the first ionization level. Still, Magnesium has a slightly larger, one proton nucleus and one more electron in that valence level to add to the energy needed to pill the first electron out of it's orbital. Electron shielding may have something to do with this also as the other valance electron of this 2+ element may shield the pulled electron.
There are different isotopes of strontium. While some isotopes of strontium are stable and non-radioactive (e.g., strontium-88), other isotopes are radioactive (e.g., strontium-90). Strontium-90 is considered a hazardous radioactive isotope because it can be absorbed by the body and increase the risk of cancer.
What volume of 2500 M strontium hydroxide is required to completely react with 75ml of 07942 M HCL?
To find the volume of strontium hydroxide needed to react with the given volume of hydrochloric acid, we use the equation: M1V1 = M2V2. Plugging in the values, we get (0.7942 mol/L) * 0.075 L = (2.5 mol/L) * V2. Solving for V2 gives us V2 = 0.0189 L or 18.9 mL of strontium hydroxide needed.
Equation for strontium nitrate and sodium sulfate?
Strontium Nitrate + Sodium Carbonate→ Strontium Carbonate + Sodium Nitrate Sr(NO3)2(aq) + Na2CO3(aq) → SrCO3(s) + 2NaNO3(aq)
The reaction between solid strontium and solid tetraphosphorus produces solid strontium phosphide as a single product. The balanced chemical equation for this reaction is: 3Sr + 2P4 -> Sr3P2. Strontium phosphide is an ionic compound that forms between strontium (Sr) and phosphorus (P).
What group does strontium belong?
Strontium belongs to the group 2 elements in the periodic table, also known as the alkaline earth metals. It has chemical properties similar to other elements in this group, such as calcium and magnesium.
Strontium is a naturally occurring element found in the Earth's crust. It can be obtained from minerals like celestite and strontianite through mining and extraction processes. Strontium is also widely available as a dietary supplement in health stores and pharmacies.
Silver nitrate and strontium iodide?
When silver nitrate and strontium iodide react, a double displacement reaction occurs. Silver iodide and strontium nitrate are formed as products. Silver iodide is a yellow precipitate while strontium nitrate remains in solution.
Erm, I seriously suggest that you don't try to obtain strontium, for several reasons. For one, it is almost ridiculouslyreactive to oxygen and water, so is usually found with other elements. Two, your body absorbs it like calcium, but instead of calcium, your bones are weakened by it to the point that it is the reason for bone cancer.
However, if you insist...
You will probably find strontium in a factory that manufactures telivisions and computer monitors. Both of the two use Strontium and Barium oxide to produce the best looking images. So if you feel in the mood to walk into a Microsoft factory and go steal a whole bunch of Strontium, be my guest. Otherwise, the only way you'll ever be able to see it is if you go and actually try to mine it at a mineral mine.
But on the rarity of those, just let me put it this way: If you find yourself in Northern Mexico, Central Spain, Midwestern Turkey or Eastern China with a pickaxe, gloves and protective clothing, go for it. You'll probably make a good thousand bucks.
What is the color of strontium when heated?
Strontium will produce different colours dependant on the circumstances. If the flame has oxygen and hydrogen present, the flame will be red. With chlorine in the flame it will be a brighter red. If it is the strontium atoms excited by themselves they produce a violet colour.
