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When a piece of zinc metal is carefully placed in a beaker of strong acid bubbles form on the surface of the metal and begin to rise to the surface. The bubbles most likely indicate that?
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When water in a beaker is heated bubbles come out to the surface why?
When a droper is dipped into water and its bulb is pressed air bubbles seems to occur in water because the dropper was filled with air before it was dipped in water and when we press the bulb air comes out forming air bubbles and the space is filled with water .
When water in a beaker is heated small bubbles escape Give reason?
Dissolved gas becomes less soluble as the temperature rises, and therefore leaves the solution and makes bubbles.
Why must the stem of the funnel touch the inside surface of the collecting beaker during filtration?
it's done to minimize the mixing of air into the filtered solution. By touching the stem to the collecting beaker, the solution flows into the beaker smoothly rather than splashing into it.
Beaker X contains 50cm3 of marbles while Beaker Y contains 100cm3 of water. When all the water in Beaker Y is poured into Beaker X what is the volume of the water in Beaker X?
The volume of the water in Beaker X will be 100cm3, as you are not adding any more water to the equation (50X+100Y is not 150Y or X, but 50X+100Y) The total volume of matter in Beaker X will be 150cm3, and if the beaker is labelled, the volume measure will indicate 150cm3 due to the displacement of water. But as the answer to your question, the volume of water in Beaker X must be 100cm3 even though visual indicators will not show this due to the displacement of water by marbles
Why would you see water droplets form at the top of the syringe if you put it in a beaker filled with hot water in chemistry?
because the water in the beaker would evaoprate into it then condense on the surface of the syringe
What is the difference between a graduated beaker and beaker?
A graduated beaker has markings, either etched or painted, which indicate approximate volumes at several levels of the beaker.
How is water droplets formed in the inner most surface of the beaker?
when the hot water in the beaker touches the cool surface of the beaker,the water condenses into water droplets.
When water in a beaker is heated bubbles come out to the surface why?
When a droper is dipped into water and its bulb is pressed air bubbles seems to occur in water because the dropper was filled with air before it was dipped in water and when we press the bulb air comes out forming air bubbles and the space is filled with water .
Is added to liquid B in a beaker. As the liquids mix a white solid and several bubbles form inside the beaker?
The white solid is a precipitate. The bubbles will be a gas. Without knowing which chemicals you are dealing with it's impossible to be more specific.
When you pour too hot or too cool water or ice in a beaker why the beaker will break?
Due to surface tension the beaker will break.
When water in a beaker is heated small bubbles escape Give reason?
Dissolved gas becomes less soluble as the temperature rises, and therefore leaves the solution and makes bubbles.
Which reaction will go to completion first and why if two beakers contain 2.2 grams of iron and 1 liter of 3M H2SO4 at STP but beaker B has a larger surface area than beaker A?
Beaker B because of increased surface area
What gas forms when you mix magnesium and hydrochloric acid?
Let's see.Mg + 2HCl --> MgCl2 + H2This appears to be hydrogen gas and if you preformed this reaction in a large enough beaker you would see the bubbles of this gas rising rapidly to the surface of the solution.
Small pieces of calcium are added to a beaker of cold water why do the calcium pieces move up and down?
Calcium oxidizes when combined with water. If you were to pour calcium powder into a beaker of water, you would see a much more dramatic effect, as the increased surface area of the powder catalyses the reaction. Also, calcium pellets (resembling gravel) react similarly with water, oxidizing and bubbling, and raising the temperature of the water. Your calcium samples must have been small enough to float to the surface on the gaseous bubbles created during the oxidation, and sank to the bottom once again after the bubbles were released.
What will happen if you reduce air pressure from a beaker containing water?
Nothing............. But if the water has any gas dissolved in it, these may form bubbles.
Why is the outside surface of beaker of water is colder than the outside surface of oil?
It is because of the different viscosity of the two liquids
Why is it important not to handle a dry clean beaker with your hands?
Handling a clean, dry beaker with your hands leaves oils and dirt on the outside surface, which could affect the beaker's weight and adds additional uncertainty to whatever experiment you are performing.
