0
When water runs over limestone in the presence of carbon dioxide, calcium ions and hydrogen carbonate ions pass into the water.
CaCO3 + H2O + CO2 = Ca(HCO3)2
Water also self ionizes so there will also be hydrated hydrogen ions and hydroxide ions.
Wiki User
∙ 8y ago
Add your answer:
Earn +20 pts
How does water in the spaces of a limestone cause physical weathering of the limestone?
Water in the spaces of limestone can cause physical weathering through a process called freeze-thaw. When water seeps into the cracks and pores of the limestone, it freezes and expands upon freezing, exerting pressure on the surrounding rock. This expansion and contraction cycle weakens the limestone, causing it to crack and break apart over time.
How are caves formed in limesone?
Briefly: Even a trace of acidity in water greatly increases the solubility of calcium carbonate (limestone). As the water flows into small cracks in the limestone, it begins to dissolve the surrounding stone and enlarge them, allowing more water to flow, which enlarges them even more. Eventually over very long time periods you get caves.
Does limestone float in water?
No, it sinks. That is an absolute answer for an ideal piece of Limestone and pure water. However in day to day life we we can observe limestone floating on warter if a) limestone is porous with air trapped in it , and/or b) water is not pure containing heavier substances dissolved in it like salts etc. +++ Limestone is not that porous! In fact most limestone is barely porous at all. It is correct that solid objects are more buoyant in brine or similar aqueous solutions more dense than pure water, but the difference is by no means enough to make a piece of rock float.
Is the formation of stalactite and stalagmite in the cave of Jeita physical or chemical change?
Not really, it's more of evaporation. Rain water percolating through the earth laid over a limestone bedrock dissolves the limestone. The lime-water drips through cracks and forms caves. Evaporation of the drips leaves behind a tiny amount of limestone, that slowly forms the stalactites and stalagmites.
How many limestone quarries are in the UK?
Over 100
What type of rock is usually present in areas with a lot of caves?
Limestone is the type of rock that is commonly found in areas with a lot of caves. Limestone is made of calcium carbonate, which is soluble in water. Over time, as rainwater seeps into the ground, it dissolves the limestone and creates openings and caves in the rock.
How can a limestone cave be formed?
From dissolution and erosion of limestone by acidic water over time.
What will happen to limestone if acidic water flows across it?
If limestone is exhausted by dissolution and acidic neutralization, then more limestone can be added to the pond over the seep.
How does water in the spaces of a limestone cause physical weathering of the limestone?
Water in the spaces of limestone can cause physical weathering through a process called freeze-thaw. When water seeps into the cracks and pores of the limestone, it freezes and expands upon freezing, exerting pressure on the surrounding rock. This expansion and contraction cycle weakens the limestone, causing it to crack and break apart over time.
What happens when water meets calcium chloride?
CaCl2 dissolves in water. Ca2+ and 2 Cl- ions form in water. The water does not change color. When the water is over-saturated with these ions, further dissolution will stop.
Why many caves are found in limestone rock?
Many caves are found in limestone rock because limestone is a sedimentary rock that is easily eroded by water. Over time, the water dissolves the limestone, creating underground passageways and caverns. Additionally, limestone is often found in areas with abundant rainfall, which further contributes to the formation of caves through the process of water erosion.
Can distilled water be electrolysed?
Yes, distilled water can be electrolysed. Water always contains a few hydrated hydrogen ions and hydroxide ions from self ionization. There can also be some chloride ions because hydrogen chloride can distil over with water. However, the concentration of ions is extremely low so electrolysis is very slow.
Does it make sense You flown over the huge limestone quarry?
Surely it should be either "You fly over the huge limestone quarry" or "you flew over the huge limestone quarry" or "You have flown over the....."
What is the chemical breakdown of gunpowder into separate components using water and carbon disulfide?
with water you would have sodium(Na+1) ions and nitrate(NO3-1) ions then with the disulfide you would have Sulfur ions with carbon left over undissolved.
How would a cave be formed on earth?
Caves are generally formed in areas rich in limestone, which erodes as water flows over it over time.
How do underground limestone carverns form?
it rains and sinks into limestone and over to starts to corrode at the vulnerable limestone
Why is water not alkaline at 60 degrees celsius when the OH value in water at 60 degrees is greater that the value at room temperature-PLEASE help ASAP?
A solution is acidic if there is an excess of hydrogen ions over hydroxide ions. In the case of pure water, there are always the same number of hydrogen ions and hydroxide ions. That means that the water remains neutral - even if its pH changes.
