Is the freezing point of mercury reversible or irreversible?

The freezing of mercury is reversible because solid mercury can be melted.

Is freezing of water an irreversible physical change?

Freezing of water is a reversible physical change.

Is freezing water into ice cubes a chemical change?

Water boiling, melting ice, tearing paper, freezing water and crushing a can are all examples of physical changes. On the other hand, chemical changes are a bit different. In a chemical change, a new substance is formed. The chemical change also usually involves heat, burning, or other interaction with energy.

Is water boiling a chemical change?

Boiling waterBoiling water is an example of a physical change and not a chemical change because the water vapor still has the same molecular structure as liquid water (H2O). If the bubbles were caused by the decomposition of a molecule into a gas (such as H2O →H2 and O2), then boiling would be a chemical change.

Is freezing mercury a physical change or chemical change?

Is the freezing of mercury a reversible or irreversible physical change? Explain your answer. The freezing of mercury is reversible because solid mercury can be melted.

What kind of mixture is mouthwash?

Homogeneous mixture-uniform mixture of the element. For example, a mouthwash is a homogeneous mixture because it is a clear solution as all the components are evenly distributed.

Can all physical changes be reversed?

Physical changes can further be classified as reversible or irreversible. Physical changes that involve a change of state are all reversible. Other changes of state include vaporization (liquid to gas),freezing (liquid to solid), and condensation (gas to liquid). Dissolving is also a reversible physical change.

Is it correct to say that all physical changes are reversible?

Answer: All physical changes are not reversible. cutting of tree, tearing of paper are irreversible physical changes.

Is Melting reversible?

Melting is an example of a physical change . The melted ice cube may be refrozen, so melting is a reversible physical change. Physical changes that involve a change of state are all reversible. Other changes of state include vaporization (liquid to gas),freezing (liquid to solid), and condensation (gas to liquid).

Can a chemical change be reversed?

Chemical changes generally result in newer substances and hence cannot be undone. Consider, for example, the burning of logs. We cannot change the ashes from these burnt logs back into the wood.

Are any chemical changes reversible?

Some chemical reactions can be reversed, and re-formed into the original substances. These are REVERSIBLE CHANGES. Chemical changes produce new materials. They also usually give out or take in energy such as heat or light because chemical bonds have been broken and made.

Is boiling water until all the water disappears a physical or chemical change?

It is a physical process.