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What reactions can take place with calcium carbonate and limeatone?
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Is calcium carbonate carbonic acid?
No, calcium carbonate (CaCO3) is the calcium salt of carbonic acid (H2CO3). If a compound has the name of a metal in it (sodium, calcium, copper, etc) it is generally not an acid but a salt. A salt is formed when a metal ion or other positive ion takes the place of hydrogen in an acid.
By what process do carbide lamps work?
For a carbide lamp to work, there is two chemical reactions that have to take place. The first chemical reactions occurs from calcium carbide and water. The second, is between calcium oxide and water. The reactions produce a very bright but gentle flame. The amount of water that combines with the calcium carbide and calcium oxide to produce this flame, is initially set by the operator of the lamp.
What chemical reaction takes place when drops of cold water are added to a white solid formed by heating calium calcium carbonate?
Exothermic reaction.
What happens to calcium hydroxide when heated?
Calcium hydroxide is dehydroxylated (i.e. it decomposes into calcium oxide and water) at high temperatures. The exact temperature seems to depend on many outside factors because I've seen the number quoted as anything between 300 and 600oC.
Where do all of the bodys chemical reactions take place?
They take place in a cell
Is calcium carbonate carbonic acid?
No, calcium carbonate (CaCO3) is the calcium salt of carbonic acid (H2CO3). If a compound has the name of a metal in it (sodium, calcium, copper, etc) it is generally not an acid but a salt. A salt is formed when a metal ion or other positive ion takes the place of hydrogen in an acid.
How does carbonation chemically weather rocks?
Ø Carbonation occurs on rocks which contain calcium carbonate such as limestone and chalk. Ø Carbon dioxide dissolved in rainwater forms weaker carbonic acid that reacts with insoluble calcium carbonate, changing it into soluble bicarbonate. This takes place when rain combines with carbon dioxide or an organic acid to form a weak carbonic acid which reacts with calcium carbonate (the limestone) and forms calcium bicarbonate. Ø The reactions as follows: Ø CO2 + H2O => H2CO3 Ø Carbon dioxide + water => carbonic acid Ø H2CO3 + CaCO3 => Ca (HCO3)2 Ø Carbonic acid + calcium carbonate => calcium bicarbonate
What are endothermic reatcions?
Endothermic reactions are reactions in which the reactants have less energy than the products. This means that the reactants will require heat, in order for a reaction to take place. After an endothermic reaction occurs, the surrounding area around the reaction will feel cooler. examples are 1) electrolysis. 2) thermal decomposition of calcium carbonate in a furnace. 3) the reaction of ethanoic acid and sodium carbonate.
What happens when calciun carbonate reacts with a neutral?
A reaction takes place I think. Neutral substance is a substance with a pH of 7 like pure water and when water reacts with calcium carbonate, calcium hydroxide and carbon 4 oxide is formed.
What happens when you place marble chips in vinegar?
Marble is primarily made of calcium carbonate. Vinegar has acid in it. When the weak acid contacts the calcium carbonate, it gives off bubbles of carbon dioxide gas, and eventually will erode the surface of the marble chips.
By what process do carbide lamps work?
For a carbide lamp to work, there is two chemical reactions that have to take place. The first chemical reactions occurs from calcium carbide and water. The second, is between calcium oxide and water. The reactions produce a very bright but gentle flame. The amount of water that combines with the calcium carbide and calcium oxide to produce this flame, is initially set by the operator of the lamp.
What type of reaction need to take place in the stomach before a person is likely to feel better?
Is it Calcium carbonate which neutralizes the acid.
What liquid can melt a pearl?
Pearls will dissolve in vinegar. This is because pearls are mostly calcium carbonate (you can find calcium carbonate probably in your medicine cabinet--it is the main ingredient in stomach antacid tablets, such as Tums). Another common item that is calcium carbonate would be eggshells. It is just in a harder form.Calcium carbonate, through chemical reactions to a weak acid solution (vinegar, also a red wine would be a weak acid solution), dissolves the chemical bonds in the calcium carbonate pearl and therefore, it will dissolve.Give it a try yourself--get some eggshells, place them in a glass. Then add white vinegar. Give it a bit and see what happens to the eggshell.I would really suggest that you not try this will real pears--real pearls are expensive, and someone would be really, really angry that you destroyed expensive pearls--eggshells are so much better to do this experiment. No one is going to really mind that you have dissolved eggshells
When CO2 mixes with limewater how do you know a chemical reaction took place?
The solution becomes cloudy due to the formation of calcium carbonate, a white solid.
What chemical reaction takes place when drops of cold water are added to a white solid formed by heating calium calcium carbonate?
Exothermic reaction.
What is the balanced equation for limestone?
...Calcium Carbonate ===> Calcium Oxide(s) + Carbon Dioxide(g). CaCO3(s) + heat ===>CaO(s) + CO2(g). ...Calcium Oxide(s) + Water(l) ===> Calcium Hydroxide(s) CaO(s) + H2O(l) ===> Ca(OH)2(s). ...Calcium Hydroxide(aq) + Carbon Dioxide (g) ===> Calcium Carbonate(s) + Water (l) Ca(OH)2(aq) + CO2(g) ===> CaCO3(s) (suspension) + H2O(l) These equations do not need balancing, they are already balanced.
What happens when carbon dioxide gas is passed through calcium hydroxide solution?
When carbon dioxide gas is passed/bubbled through aqueous calcium hydroxide (also known as 'limewater'), a white precipitate will be formed. This means that the solution will turn cloudy/milky due to the formation of that white precipitate.Ca(OH)2(aq) + CO2(g) → CaCO3(s) + H2O(l)The precipitate, calcium carbonate, is only sparingly soluble in water. It will exist as a suspension in the resulting solution.But when excess carbon dioxide is added, this reaction takes place instead:CaCO3(s) + H2O(l) + CO2(g) → Ca(HCO3)2(aq)The calcium carbonate undergoes further reaction with water and carbon dioxide to form calcium bicarbonate (or calcium hydrogen carbonate), which is soluble. Thus the precipitate appears to 'disappear' or 'dissolve'. Thus, a colourless solution is formed.----- Other answers -----Water is added to give calcium hydroxide, and carbon dioxide is passed through this solution to precipitate the desired calcium carbonate, referred to in the industry as precipitated calcium carbonate (PCC):if carbon dioxide is passed through it it will turn cloudy and if it is done for to long then it will turn colourless.
