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When a drop of universal indicator is dropped into calcium hydroxide what colour change will you observe?
Wiki User
∙ 10y ago
With a pH of 12 it is very alkaline and would turn universal indicator dark blue.
Wiki User
∙ 10y ago
Wiki User
∙ 6y agoCalcium Hydroxide is a base, therefore litmus paper would turn blue.
Wiki User
∙ 6y agoIn this reaction calcium hydroxide is obtained, a basic product.
Wiki User
∙ 13y agoit goes green ph7 neutral
Wiki User
∙ 11y agoSky blue pink
Wiki User
∙ 8y agoThe color is blue.
Wiki User
∙ 10y agogreen
Elinah Moloi
Blue
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What is the word equation for slaked lime?
Limestone to quicklime: Calcium carbonate ---heat---> calcium oxide (QUICKLIME) + carbon dioxide Chemical formula: CaCO3 ---heat---> CaO + CO2 Quicklime to slaked lime: Calcium oxide (QUICKLIME) + water ---> calcium hydroxide (SLAKED LIME) Chemical formula: CaO + H20 ---> Ca(OH)2
What gas is produced when calcium metal is dropped in the water?
Hydrogen gas. Ca + 2H2O ------> Ca(OH)2 + H2
Genardo dropped an eggshell into hydrochloric acid bubbles formed on the shell the shell is made of calcium carbonate what gas was in the bubbles?
Carbon dioxide is released.
Why would a town add sodium hydroxide to its water supply?
If your water system is one that does water softening, than the sodium Hydroxide (also called caustic soda or lye) would be used to raise the PH before going into a softening tank. With a higher PH the mineral in the water will stick to something like sand that is added to the tank. The sand will get heaver and can be dropped out. Sodium hydroxide is also used in making soft drinks, chocolate and other foods.
If hno3 is added to water how does pH- change?
If nitric acid (HNO3) is added to water, it decreases the concentration of hydroxide ions in solution. This is because nitric acid semi-strongly dissociates in water, following this chemical reaction: HNO3(aq) + H2O(l)-->NO3-(aq) + H3O+(aq) The hydronium ions that are created in this reaction then react quickly with the hydroxide ions in the water, as shown in this chemical equation: H3O+(aq) +OH-(aq) --> 2H2O(l) This results in fewer hydroxide ions existing in solution.
What gas is produced when calcium metal is dropped in water?
HYdrogen. The Group (II) Alkaline Earth elements, of which calcium is one, react in a similar way the Group (I) Alkali metals, but less vigorously. So like sodium and water produces sodium hydroxide and hydrogen . # Then calcium and water produce calcium hydroxide and hydrogen. Here is the reaction eq'n. Ca(s) + 2H2O(l) = Ca(OH)2(aq) + H2(g) .
A piece of sodium that's dropped into a beaker of water?
when sodium is dropped into water sodium hydroxide is produced leaving out hydrogen.
What happens when a piece of magnesium is dropped into a beaker of hot water?
It will react slowly to form magnesium hydroxide and hydrogen gas.
What is the word equation for slaked lime?
Limestone to quicklime: Calcium carbonate ---heat---> calcium oxide (QUICKLIME) + carbon dioxide Chemical formula: CaCO3 ---heat---> CaO + CO2 Quicklime to slaked lime: Calcium oxide (QUICKLIME) + water ---> calcium hydroxide (SLAKED LIME) Chemical formula: CaO + H20 ---> Ca(OH)2
If a piece of potassium metal is dropped in water then a vigorous reaction takes place with the formation of potassium hydroxide and hydrogen gas is evolved?
Yes, it is correct.
Is calcium metal more or less dense than water?
Calcium metal is more dense than water. If you had a block of calcium and dropped it in a container of water, it would sink. Note! Calcium reacts with water! Calcium metal is stored in a container beneath kerosene or another liquid to isolate the metal from air. Calcium will chemically react with the moisture in air and will thus be decomposed.
What gas is produced when calcium metal is dropped into water?
Hydrogen gas. Ca + 2H2O ------> Ca(OH)2 + H2
What gas is produced when calcium metal is dropped in the water?
Hydrogen gas. Ca + 2H2O ------> Ca(OH)2 + H2
Genardo dropped an eggshell into hydrochloric acid bubbles formed on the shell the shell is made of calcium carbonate what gas was in the bubbles?
Carbon dioxide is released.
What is the scientific explanation for retrieving a broken eggshell dropped in a pan with another piece of eggshell?
Egg shells are rich in calcium. Birds need calcium to lay strong eggs. By giving the eggshells to birds you are producing less waste and contributing to the environment
Could someone help explain an error message I got when trying to open an application You can't open the application GifBuilder because the Classic environment is no longer supported?
In 10.6 the only way it will work is if the software company makes a "Universal" patch, Apple dropped the Classic program and Rosseta took it's place so you could still use a "Universal" patch. Your using 10.7 and are trying to open an older application with PPC/Universal code in it and Apple has dropped support for Classic/Roseta that was required to open it.
Why would a town add sodium hydroxide to its water supply?
If your water system is one that does water softening, than the sodium Hydroxide (also called caustic soda or lye) would be used to raise the PH before going into a softening tank. With a higher PH the mineral in the water will stick to something like sand that is added to the tank. The sand will get heaver and can be dropped out. Sodium hydroxide is also used in making soft drinks, chocolate and other foods.
