Any reaction occur; vitamin C is soluble in water.
The coenzyme FAD is formed from vitamin B2, also known as riboflavin.
A product is a substance that is formed by a chemical reaction.
No, adding copper to gold to create jewelry is not a chemical change; it is a physical change. This process involves alloying, where metals are mixed to form a new material with different properties, but the original metals retain their chemical identities. The resulting alloy, such as rose gold or white gold, can be reshaped and manipulated, but no new substances are formed during this process.
A chemical substance formed as a result of a chemical reaction is called a product. Products can be either the desired end product of the reaction or byproducts that are formed during the reaction.
A chemical change has occurred when a new substance is formed. Characteristics of this include a color change, precipitate is formed or it bubbles meaning a gas has formed.
There won't be any reactions
When you mix sugar and Coke, the primary gas that is formed is carbon dioxide (CO2). This gas is already present in Coke due to carbonation, but adding sugar can cause the release of more CO2 from the solution, leading to fizzing or bubbling. The reaction is not a chemical one but rather a physical reaction where the sugar interacts with the carbonated beverage, potentially increasing the effervescence.
No, adding phenolphthalein to sodium hydroxide is a physical change because it only involves mixing two substances together. A chemical change would involve a new substance being formed through a chemical reaction, which does not occur in this case.
Adding milk to coffee is a physical change, as it does not alter the chemical composition of the milk or coffee. The molecules of milk and coffee simply mix together physically, without any new substances being formed.
The coenzyme FAD is formed from vitamin B2, also known as riboflavin.
Adding lemon to tea is a physical change because no new substances are formed. The lemon flavor simply interacts with the tea molecules in a physical way.
Adding Hydrochloric acid to magnesium induces a chemical change, according to the reaction: Mg(s) + 2HCl(aq) > MgCl2(aq) + H2(g)
Adding HCl to Mg would result in a chemical change. The reaction between hydrochloric acid (HCl) and magnesium (Mg) produces hydrogen gas (H2) and magnesium chloride (MgCl2), which are new substances formed by a rearrangement of atoms. This is a chemical change because the composition of the substances involved is altered.
Adding sand and water is a physical change because no new substances are formed. The sand particles remain as they are and simply mix with the water, without any chemical bonds being broken or formed.
Carbonating water is a physical change because it involves dissolving carbon dioxide (gas) into the water to create carbonated water. No new substances are formed during the process, so it does not involve a chemical change.
Vitamin B
Vitamin D is the important vitamin that is formed in the skin when it is exposed to sunlight. UVB rays from the sun convert a cholesterol derivative in the skin into vitamin D3, which is then converted into its active form in the liver and kidneys.