Sugar and Salt
This is a reversible process.
Irreversible examples: Burning a piece of paper, baking a cake, digesting food, rusting of iron, breaking a glass. Reversible examples: Melting ice into water, boiling water into steam, freezing water into ice, dissolving sugar in water, compressing a gas into a liquid.
It’s reversible
Baking powder is generally considered a reversible reaction in water, as it dissolves and dissociates into its components, allowing it to react chemically when mixed with other ingredients. However, the reaction that occurs when baking powder is heated (producing carbon dioxide gas) is irreversible. Thus, while its dissolution in water is reversible, the subsequent chemical reactions during baking are irreversible.
Baking powder (baking soda + some acid salts) will release CO2 (carbon dioxide gas) when placed in water. So, even though, in theory, all reactions are reversible, it is not likely that baking powder in water is reversible once the CO2 gas has formed.
no
No it is always reversible
It is reversible. You can allow the water to evaporate, leaving the salt behind.
Mixing Alka-Seltzer and water is a reversible change because it can be undone by allowing the water to evaporate, leaving behind the original substances in their initial forms.
reversiublrt
This is a reversible process.
Portland cement (and the concrete, mortar, thin set, or other masonry product made from it) doesn't dry. Rather, it cures by a chemical reaction initiated by putting water in it. The reaction is irreversible; hence, adding water to cement is an irreversible change.
reversible?
Irreversible examples: Burning a piece of paper, baking a cake, digesting food, rusting of iron, breaking a glass. Reversible examples: Melting ice into water, boiling water into steam, freezing water into ice, dissolving sugar in water, compressing a gas into a liquid.
No, powdering sugar is a reversible change because the sugar can be easily changed back to its original form by adding water and heating it.
reversible
It’s reversible