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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 else can I help you with?
What happens to the temperature of water after calcium oxide is added?
The temperature of water increases when calcium oxide is added because it undergoes an exothermic reaction, releasing heat energy. Calcium oxide reacts with water to form calcium hydroxide, a process known as hydration.
What happens to the water temperature when calcium chloride is added?
When calcium chloride is added to water, it increases the temperature of the water. This is due to the exothermic reaction that occurs when calcium chloride dissolves in water, releasing heat in the process.
How does the limestone cycle work?
Starts off as Calcium Carbonate , when heated the calcium carbonate becomes Calcium Oxide + Carbon Dioxide, the Calcium Oxide then reacts with water to produce Calcium Hydroxide and then when more water is added then filtered it becomes Calcium Hydroxide Solution, C02 is then added to form Calcium Carbonate again [:
What is the product when calcium carbonate is added to water?
When calcium carbonate is added to water, it will form a suspension where the calcium carbonate particles are dispersed in the water. While some of the calcium carbonate may dissolve into calcium ions and carbonate ions, the majority will remain as solid particles in the water.
When Litmus paper when added to calcium oxide and water?
When litmus paper is added to calcium oxide and water, it will turn blue due to the formation of calcium hydroxide, which is a basic solution. Calcium oxide reacts with water to form calcium hydroxide, releasing heat in the process.
Why is calcium chloride not safe to eat?
Calcium chloride hasn't a good taste. But calcium chloride (as agent E509) can be added (of course in small amounts) to some foods and drugs.
If thirteen grams of water is added to a beaker how many ml of water were added?
Thirteen grams of water is the same as thirteen milliliters. So, if thirteen grams of water were added to the beaker, then thirteen milliliters of water were added.
What should be added to a beaker half filled with water to raise it's water level?
stones :)
What is the result when marbles are added to a beaker of salt?
The marbles will pulverize the salt crystals so much that the salt looks like a powder but the salt has actually been reduced to very small crystals.
Which gas is evolved when few pieces of marble is added to dilute HCl?
When marble (calcium carbonate, CaCO3) is added to dilute hydrochloric acid (HCl), carbon dioxide gas (CO2) is evolved due to the reaction between the acid and the carbonate compound. This gas can be observed as bubbles coming out of the solution.
What will happen to candle in a beaker if carbon dioxide is added?
It'll go out
An empty beaker has a mass of 115 g After some water is added to the beaker the mass is 147 g What is the mass of the water?
32 g
When a white powder is added to a liquid in a beaker at room temperature the beaker becomes too hot to touch What kind of reaction is this an example of?
Exothermic?
How would the water get into the beaker?
When you pored it into the beaker it would be there. It has to be added by some process. Using the faucet or another container with water in it would be the simplest manner.
What chemical does calcium oxide form when added to water?
When calcium oxide is added to water, it forms calcium hydroxide, also known as slaked lime, through a process called hydration. This reaction is exothermic, releasing heat as the calcium oxide binds with water molecules to form calcium hydroxide.
How calcium oxide is formed in a blast furnace?
Calcium oxide is formed in a blast furnace as a byproduct of the smelting process when limestone, which contains calcium carbonate, is added to the furnace. The intense heat of the furnace decomposes the calcium carbonate into calcium oxide and carbon dioxide. The calcium oxide is then collected as a solid residue.
If a liquid is added to a beaker the pressure exerted by the liquid on the bottom of the beaker?
increases due to the increased weight of the liquid. This is because the liquid's weight creates a force that is spread out over the bottom of the beaker, leading to an increase in pressure.
