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What would you see when doing thermal decomposition of potassium manganate?
Wiki User
∙ 12y ago
Oxygen will be given off
Wiki User
∙ 12y ago
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How many grams of potassium carbonate are needed to make 200mL of a 2.5M solution?
You would basically start off by multipying the 2.5X0.2 because you must change the mL to L and by doing so you will get : 0.5 once you have the 0.5 you then must find the molar mass # of potassium carbonate and to do so you must look at a table of elements. The molar mass number of K2CO3 is: 39(2)+12+16(3) = 138 Now that you have the molar mass # which is 138 you must multiply it by 0.5 from before so lastly you: 138X0.5= 69g And that's how you do it... :)
Where does potassium come from?
potassium comes from seawater . but it is found in other foods. such as avocado, banana nuts, orange juice, peanut butter, etc. the person who discovered potassium was Sir Humphrey Davy in 1807. the word potassium comes originally from potash. the atom of a potassium has four energy levels. in the first level it has 2 electrons, in the second level it has 8 electrons, in the third level it also has 8 electrons, finally in the fourth level it has only one electron. i can't say that learning things about an atom is easy but if pay close attention it could be easy to remember. first things first the atomic number which is the number at the top of the periodic letter of any atom is equal to the number of protons which also equals the number of electrons. now the number at the bottom of the letter is the atomic mass unit. this is the number that tells you the number of nuetrons. in order to get the number of nuetrons you need to take the atomic mass unit and subtract it with the number of protons. then you get your number of nuetrons. congrgulations, i hope you get an A on your project or whatever your doing
Is reaction of potassium iodide and water exothermic or endothermic?
Its endothermic... In my experiment, it went from 26 to 25 degrees celsius... Its endothermic... In my experiment, it went from 26 to 25 degrees celsius... This is wrong it is exothermic. Potassium chloride is snow salt. it is used because not only does it react with the snow to create hydrochloric acide and potassium hydroxide (both with much lower freezing points) but, the EXOTHERMIC reaction also helps melt the snow No, it is endothermic. The only reason we add salt to snow is to lower the melting point. If you're curious, dissolve as much KCl in a beaker as you can as quickly as you can. The water temperature will drop dramatically.
What is a home substitution for Epsom salts?
It depends what you're using it for. For some uses other salts (such as table salt or sea salt) might work; if you're doing something that depends on the specific chemical properties (for example, you need the magnesium ions to be present), then table salt will NOT work.
How is the S.A government helping to stop acid rain?
They are not doing anything... They are not doing anything...
Two ways to separate a compound?
There are 2 very different ways to separate a compound. You can separate a compound by doing a single or double replacement reaction or by melting the compounds.
What is thermal warming?
It is a tautology - while a thermal blanket may keep you warm, it is not doing so by thermal warming it is doing so by thermal insulation. Thermal means "relating to heat". Warming means "increased heat"
Can the dead guide you?
No, the dead are incapable of doing anything unrelated to decomposition.
What happen when potassium chlorate is heated?
It would decompose and turn molten. But be careful when you are doing it. Molten potassium chlorate is very nasty stuff. Spill it onto your skin, and it would leave a terrible burn. Potassium chlorate decomposes into oxygen, and when something that could burn, such as a gummy bear, is added to it, it rapidly combusts, driving the decomposition forward. If you spill molten potassium chlorate, you could think of the table, floor, your clothes, your skin, as another gummy bear. So be cautious when working with it.
What did you learn by doing the thermal energy lab?
Nothing really.
What element can be doing in the same period as the element potassium?
sodium and lithium are both group 1 elements (like potassium)
How is potassium related to a neuron?
bad place kid for doing poster
What are descomposer?
Are organisms that break down dead or decaying organisms, and in doing so carry out the natural process of decomposition.
What is a breaking down reaction a word with 13 letters in it?
are you doing a crossword because so am I! The answer is DECOMPOSITION. good luck!!
If potassium and sodium are so reactive how do you maintain levels of sodium and potassium in your cells without doing damage to your own cells?
We do not have pure sodium or potassium in our bodies; that would kill us! We really have sodium chloride (NaCl) which is table salt, and most likely potassium oxide (K2O) or some other compound with potassium in it.
When a boy was skating kinetic energy was doing what?
When the boy was skating qhat is thermal energy doing
What means decomposer?
De composers are organisms that break down dead or decaying organisms, and in doing so carry out the natural process of decomposition.
