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What will happen if small piece of crystall of potassium permaganate is dropped in a beaker filled with water and is heated?
Wiki User
∙ 15y ago
The water turns purple, and gets hotter. And what happens to the beaker? Depending on what it is made of, and the temperature to which it is heated, it might melt.
Wiki User
∙ 15y ago
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A piece of sodium that's dropped into a beaker of water?
when sodium is dropped into water sodium hydroxide is produced leaving out hydrogen.
When a small piece of potassium is dropped into a beaker of water the potassium moves about rapidly and then ignites within secounds the metal is gone and all activity ceases Is that chemical change?
Yes, according to wikipedia: Potassium reacts very violently with water producing potassium hydroxide (KOH) and hydrogen gas.2 K (s) + 2 H2O (l) → 2 KOH (aq) + H2 (g) This is a chemical change.
How do i Separate naphthalene potassium chloride and sand?
Add warm water to dissolve the KBr which is very soluble. This would become the aqueous layer and would be more dense and thus at the bottom. Add them to a sep funnel and decant. Evaporate the water off and you have the KBr. The remaining fluid in the sep funnel is npahthalene
Why does the purple colour spread when a crystal of potassium permanganate is placed in water?
A water solution of potassium permanganate is formed.
If A beaker contains 100 grams of 1.7 M NaCl and you transfer 50 grams what is the molarity of the solution in the beaker?
1.7M
Does a beaker break easily when dropped?
Of course not .Because most of the beaker is made of plastic ,we are not often see beaker made of ceramic and metal
Is calcium chloride and potassium chloride crystals in a beaker a pure substance?
Calcium chloride and potassium chloride are pure substances.
What would happen to a marble if dropped into an empty container like a beaker while the person dropping it was in motion?
The marble will have the motion of the person who dropped it (I assume you mean by 'dropped' that it is not thrown by the person, just dropped), whilst I assume the beaker is stationary. I also assume the person is moving horizontally and the beaker is upright. Therefore the marble will arrive in the beaker with some sideways velocity and will strike the side of the beaker with a horizontal component of velocity as well as a vertical component. I should think it will spin round the beaker a few times before coming to rest, it might even bounce right out. You can't predict this exactly without some more information.
A piece of sodium that's dropped into a beaker of water?
when sodium is dropped into water sodium hydroxide is produced leaving out hydrogen.
When a small piece of potassium is dropped into a beaker of water the potassium moves about rapidly and then ignites within secounds the metal is gone and all activity ceases Is that chemical change?
Yes, according to wikipedia: Potassium reacts very violently with water producing potassium hydroxide (KOH) and hydrogen gas.2 K (s) + 2 H2O (l) → 2 KOH (aq) + H2 (g) This is a chemical change.
What is occurring when a piece of potassium metal ignites in a beaker of water?
The potassium reacts with water to produce potassium hydroxide, hydrogen gas, and large amounts of heat. The heat ignites the hydrogen which in turn ignites the potassium.
What is the product of pottasium with water?
If a piece of Potassium is dropped into a beaker of water it whizzes around on the surface of the water. The reaction is so vigorous that the heat of it causes the Potassium metal to metal. It 'fizzes' and the heat generated can often cause the Hydrogen, that is produced by the reaction, to ignite with a lilac colour flame. Larger pieces of Potassium may even explode due to the vigor of the reaction. 2K + 2H2O ----> 2KOH + H2 (gas)
What happens when an object is dropped into a beaker containing a liquid and then the object drops to the bottom of the beaker?
The density of the object is at least equal to, and possibly greater than, the density of the liquid in the beaker.
What happens when a piece of magnesium is dropped into a beaker of hot water?
It will react slowly to form magnesium hydroxide and hydrogen gas.
A beaker containing 80 grams of KNO3 in 100 grams of water have a temperature of 30 and Acirc and degC. Approximately how many grams of the salt are undissolved on the bottom of the beaker?
The mass of undissolved potassium nitrate is cca. 3 g.
When sodium metal is dropped into a beaker of water a chemical reaction occurs that increases the temperature of the water This is an example of what?
You think probable to an exothermic reaction.
When was lamination invented?
It was invented in 1903 by a french chemist when he dropped a glass beaker coated in viscous collodion and it shattered, but didn't come apart because of the coating.
