Yes it is a physical change not a chemical change.
p.s. an example of a chemical change is an apple roting
in changes. Physical changes can be reversed. E.g. if you were to melt a block of ice, and then freeze it again, it would to some degree be reversed. This is a physical change. However, if you were to burn a peace of toast, the change would be chemical. Once the toast is burnt you cant get it back.
No, adding more silver to a silver block would not change its density. Density is a physical property that remains constant regardless of the amount of the material present. The volume of the block would increase if you add more silver, but the density would remain the same.
if a 50 g of iron gets melted how much liquid does it produce
Adding more copper to a copper block will increase its mass and volume, causing a change in its overall size and weight. It can also increase the thermal and electrical conductivity properties of the block. However, its physical appearance and chemical properties will remain the same.
No, a block of ash wood will not float in methanol. Wood is denser than methanol, so it will sink in the liquid.
It is a physical change: change of state of matter from solid to liquid.
Yes. The wire and the block are still composed of the same material - only the shape has changed.
The creation of a hollow block is a physical change because it involves a change in the block's appearance and structure without altering its chemical composition.
Sanding a block of wood is a physical change. This process involves the mechanical removal of material from the surface of the wood, altering its texture and appearance without changing its chemical composition. The wood remains wood, and its chemical properties are unaffected by the sanding.
No, hollow block is not a physical change. A physical change refers to changes in the state or appearance of a substance without altering its chemical composition. However, hollow block is a building material made from a mixture of cement, sand, and other aggregates, which undergoes a chemical change (hydration) during the curing process.
As a basic example: When a block of ice melts into water, the change is physical (solid to liquid) yet the chemical contents of the ice/water remains unchanged. If a lot of salt is then dissolved in the melted water, it is still water, yet it has changed chemically into a saline (salty) solution. The added salt will increase the water's density - which could be a physical change!
no
Physical, because each slice of pellet is still the same chemically: you have merely divided your one sodium block into two blocks of sodium. If it were chemical, some kind of notable chemical difference would have occurred (you would no longer have sodium, but something else).
The matter of the block displaced the water causing the water to rise
in changes. Physical changes can be reversed. E.g. if you were to melt a block of ice, and then freeze it again, it would to some degree be reversed. This is a physical change. However, if you were to burn a peace of toast, the change would be chemical. Once the toast is burnt you cant get it back.
Nope. If they block anonymous users only, changing ip address will be restricted.
A block is considered a solid because its molecules are tightly packed together, creating a structure that maintains its shape and volume. This close arrangement of molecules prevents the block from easily changing its shape or flowing like a liquid or gas.