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When heated to decomposition calcium chloride produces chlorine gas is it physical or chemical?
The production of chlorine gas when calcium chloride is heated to decomposition is a chemical change. This is because a new substance (chlorine gas) with different chemical properties is formed as a result of a chemical reaction taking place between the calcium chloride and heat.
When sugar is heated what happen to limewater?
When sugar is heated, it undergoes caramelization, which is the breakdown of sugar molecules at high temperatures. Limewater, which is a solution of calcium hydroxide, remains unchanged when sugar is heated as they are two separate substances and do not chemically react with each other.
Is chemical change a black solid when heated changes into a purple gas?
Yes, this observation of a black solid turning into a purple gas when heated suggests a chemical change. The change in color and state indicates that new substances are being formed through chemical reactions taking place in the solid material.
When limestone is added to lakes why is it powdered?
Limestone is powdered when added to lakes to increase its surface area, allowing for quicker dissolution and reaction with acidic water. This helps to neutralize the acidity and restore the pH balance in the lake, promoting healthier aquatic ecosystems.
Which one of the following is the number you place to the left of the formula a substance taking part in a reaction?
The number you place to the left of a formula in a chemical equation is the coefficient, which represents the amount of that substance taking part in the reaction.
What is the chemical change takes place when limestone is heated strongly?
This is a thermal decoposition: CaCO3 --------CaO + CO2
How can you turn limestone to cement?
Powdered limestone has to be heated with powdered clay to turn it into to cement. You can then use cement and powder it, then mix with water, sand crushed rock and a slow reaction takes place forming concrete. It is in the Cors Science GCSE
What do you see when limestone is heated very strongly?
simply it breaks out due to forming of carbon dioxide in the gaps if it takes place in an close atmosphere with high pressure than turns into marble.
Why is acid making limestone fizz a chemical change?
When acid reacts with limestone, it causes a chemical reaction that results in the formation of new substances. This transformation is considered a chemical change because the original properties of the limestone and acid are altered, forming new chemical compounds. The fizzing is often a visual sign of this chemical reaction taking place.
What changes takes place when water is heated or cooled?
what changes take place when water is heated or cooled
How do limestone absorb carbon dioxide?
yes it does. it absorbs lots of the stuff.. it very usefull it made out of crushed up sea shell carbon dioxide a colourless gas and can be tested by bubbling it through lime water.
What chemical reaction takes place between ice and salt mixture?
None. The ice might melt and dissolve some of the salt, but that's not a chemical rection.
Which Place did sandstone and limestone come from in ancient Egypt?
From Sudan
Processwhen powered limestone reacts with acid in lakes?
exothermic process takes place when powdered limestone reacts with acid in lakes.
What is taking place in a distillation?
What is taking place in a distiallation?
What changes take when water is heated or cooled?
what changes take place when water is heated or cooled
Is Michael jacksons son taking his place?
Nobody is taking his place.
