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Write the reactions of hard water with soap which leads to the formation of white insoluble scum?
When hard water reacts with soap, it forms an insoluble scum due to the reaction between the calcium and magnesium ions present in the water with the soap. The calcium and magnesium ions react with the soap molecules to form calcium and magnesium salts of the fatty acids, which are insoluble and appear as white scum in the water.
What are the colors of cuprous salts?
Cuprous salts are typically white or pale yellow in color.
How the carbonate salts changes to sulfate salts?
Carbonate salts can be converted to sulfate salts through a double displacement reaction where the carbonate anion is exchanged with the sulfate anion. This reaction usually requires the addition of a sulfate-containing compound to the carbonate salt solution, leading to the formation of sulfate salts and a carbonate byproduct. The reaction can be represented by the general formula: (CO3)2- + SO4 2- → (SO4)2- + CO32-
Why is calcium carbonate a white powder?
Because it doesn't absorb any wavelengths in the visual region of the electromagnetic spectrum. This is actually characteristic of alkaline earth metal salts, at least those where the anion does not contain a transition metal.
What is a fireworks spark made from?
It is made from different types of burning metals; * Strontium and lithium salts - red* Copper salts - blue* Magnesiumsalts - white* Barium salts - green* Sodium salts -gold.
What is the color of most nickel containing salts?
white silvery
What is the name of the compounds that are responsible for the formation of white insoluble scum?
The compounds responsible for the formation of white insoluble scum are typically calcium and magnesium salts of fatty acids, known as soap scum. These salts can accumulate on surfaces in contact with soap and hard water, leading to the formation of the white residue.
Name some metal salts and their colour?
Calcium carbonate is white; coppper (II) hydroxide is blue; iron (III) hydroxide is reddish brown.
A precipitate will be formed when an aqueous carbonic acid solution is added to an aqueous solution of?
Calcium chloride. When carbonic acid is added to a solution containing calcium chloride, a white precipitate of calcium carbonate is formed due to the reaction of calcium ions with carbonate ions from carbonic acid.
What is Ca3(PO4)2?
Ca3(PO4)2 is the chemical formula for calcium phosphate, a white, powdery mineral that is a major component of tooth enamel and bone. It is commonly used as a nutritional supplement to provide calcium and phosphorus to the body.
What is the white substance that covers the dentin of the crown of a tooth?
The white substance that covers the dentin of the crown of a tooth is called enamel. Enamel is the hardest substance in the human body and serves to protect the underlying dentin and pulp from decay and damage. It is primarily composed of hydroxyapatite, a crystalline calcium phosphate, and is critical for the tooth's durability and function in chewing.
Are all salts are white or gray with a metallic luster?
No. Many metal salts are not white or gray.
Are all salts white or gray with a metallic luster?
No, not all salts are white or gray with a metallic luster. Salts can come in various colors depending on their composition. For example, iron salts can range from yellow to green, while copper salts can be blue or green.
What is CaCO3 at room temperature?
At room temperature (around 20°C), CaCO3 exists as a white solid known as calcium carbonate. It is insoluble in water but can react with acids to form calcium salts, carbon dioxide, and water. Calcium carbonate is commonly found in nature as limestone, chalk, and marble.
Why is there a white coating on calcium?
The white coating on calcium is likely calcium carbonate, which forms when calcium comes into contact with carbon dioxide in the air. This reaction creates a thin layer of calcium carbonate on the surface of the calcium, giving it a white appearance.
How do you make blue fireworks?
how you make blue fireworks is by using copper and to make yellow is sodium and to make white is to use magnesium and to make orange you use calcium salts and to gold you use charcoal and to make red you use lithium salts and also to make purple you can you lithium salts (red) and copper (blue).
What color is calcium phosphate?
Calcium phosphate is typically white in color.
