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Why potassium iodide can conduct electricity in the molten state but not in solid state?
Potassium Bromide or KBr is not able to conduct electricity in solid state. It is an ionic compound and its ions are not free to move in the solid state, hence they are not able to conduct electricity. But when they are in aqueous state, they are free to move and thus become able to conduct electricity.
What type of bond is formed between potassium and oxygen?
metal : potassium behavior: catches fire immediately with only a little heating. Burns fiercly with a lilac flame. product : potassium oxide equation: K2O equation: K+O2------->K2O
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.
Why does silver iodide melt faster than vanillin?
The attractive forces holding the molecules of silver iodide together (intermolecular forces) are stronger than those in vanillin, therefore they require more energy to break them. The attractive forces between two molecules of silver iodide are much stronger than the attractive forces between two molecules of vanilin. This is due to the different types of bonds found in each molecule - silver iodide molecules contain ionic bonds, which are very strong, while vanilin molecules contain covalent bonds which are a lot weaker. Since the attractive forces are higher in silver iodide, it requires a lot more energy (i.e. heat) to break these attractive forces in order to melt silver iodide, therefore it has a much higher melting point than vanilin. The bonding of atoms.
Why does potassium chloride have such a high melting point?
Potassium chloride has a high melting point due to its strong ionic bonding between potassium cations and chloride anions. The electrostatic forces holding the ions together require a significant amount of energy to break, leading to the high melting point of potassium chloride.
Does potassium iodide melt easily when heated?
Potassium iodide, like salts in general, has a high melting point. It does not melt easily when heated.
Can you melt ionic compounds in a Bunsen burner flame?
It is not recommended to melt ionic compounds using a Bunsen burner flame because the intense heat can lead to decomposition of the compound or produce toxic fumes. It is safer to use a method like heating in a crucible with a low flame or using a heating mantle for melting ionic compounds.
What metal could you boil in a Bunsen flame at 800 degrees?
Zinc, Lead, Tin any metal that is on the softer side would melt.
Why is a high temperature needed to melt potassium iodide?
Potassium iodide has a high melting point because of its strong ionic bonds between potassium and iodine atoms. To overcome these bonds and separate the ions, a high temperature is required to provide enough energy to break the bonds and transition the solid to a liquid state.
At what point does ice melt over a bunson burner?
Ice begins to melt when its temperature reaches 0 degrees Celsius (32 degrees Fahrenheit), transitioning from a solid to a liquid state. When exposed to a Bunsen burner, the heat from the flame will increase the temperature of the ice, causing it to melt more rapidly.
What happens when you heat copper over a Bunsen flame?
Heating copper over a Bunsen flame will cause it to change color from its original reddish-brown to a dark brown/black color due to the formation of copper oxide on its surface. Continued heating can cause the copper to eventually melt and form a molten liquid.
Why sugar not heated directly with a Bunsen flame?
Sugar should not be heated directly with a Bunsen flame because it can quickly melt and possibly catch fire. The high heat can cause rapid caramelization and the release of flammable gases, leading to a potential fire hazard. It is safer to use indirect heat sources, such as a double boiler or a hot plate, to heat sugar gradually and prevent overheating.
Can you measure the temperature of a flame of a Bunsen burner using a thermometer?
Yes, and No. You will get an inaccurate number since of air temperature and a few variables, but it will be relatively close. I do not recommend this, because a few things may happen, and even some I do not even know of. The thermometer will get hot and melt. Or explode. And many other things can happen.
Can you Melt silver with a Bunsen burner?
No, a Bunsen burner does not produce enough heat to melt silver, which has a high melting point of 961.8 degrees Celsius. You would need a hotter heat source such as a torch specifically designed for melting metal.
What is the difference between Bunsen burner and alcohol lamp?
Bunsen Burner: - Uses Gas - Achieves up to roaring blue flame - Used to melt solid objects Alcohol Lamp: - Uses Alcohol - Achieves Yellow flame only - Used to boil water
What happens to a piece of porcelain when heated on a Bunsen burner?
Nothing! but if you keep it in for a while, the flame turns orange
What happens if NaCl is heated to long?
If you heat NaCl to 801 degrees C, it will melt and if heated to 1413 degrees C, it will boil. You can definitely melt salt in a Bunsen burner flame in one class period, but heating it to boiling would take some time.
