The simple act of drying a leaf (removing water) would not be a chemical change, but would represent a physical change. This is because if you were to re-hydrate the leaf, you should, in theory be able to make it the same as it was. However, the consequences of drying a leaf, i.e. what happens to various components of the leaf when water is removed, would represent a chemical change.
Yes, because A, you are adding an abiotic factor to the wood (heat), and B, it cannot be reversed, since it is impossible to revert the wood back into its original state.
It is a Physical Change because i dont know but im sure that is a physical change :P
No. It is a Physical Reaction. No chemical changes take place. Mainly the water/moisture contained in the woods gets evapourated.
No. Drying wood is a physical change because its chemical composition does not change.
Yes, drying of leaf is a chemical change.
The answer is D ! (a) melting ice to obtain water - is changing waterfrom its solid form to liquid by heat. (b) evaporating alcohol into vapour - is changing alcohol from liquid to a gas. (c) drying wood in a shed - is simply allowing Amy moisture present in the wood to evaporate. In all three of these cases the original material remains chemically unchanged. in (d) burning coal in a furnace - the cellular structure of the wood is broken down by heat - the individual wood cells are destroyed, turning it from cellulose to carbon.
A benefit of a plastic garden shed over a wooden garden shed is that the plastic shed will not rot, as it is not biodegradable, therefore will not break down as quickly as a wooden garden shed would.
They use them by puting CO2 (carbon dioxide) detectors around a truck to pick up tiny movements or to sense breathing inside the truck. But only if they think that someone is in the truck they will send it to a detector shed where the detector shed will do the same thing as the Carbon dioxide Dectectors
Ductile Malleable have Luster lose electrons when make ionic compounds
I pick cattails leaving about 10 inch stem. Let dry in cardboard box in shed for about 1 month. Soak them in gasoline for about 10 minutes, then let dry outside for a few hours. Store again in plastic bag in a cardboard box in shed until you are ready to use them. Great for keeping bugs away, and give a cool effect.
its D. burning coal in a furnace
c) burning coal in the furnace
The answer is D ! (a) melting ice to obtain water - is changing waterfrom its solid form to liquid by heat. (b) evaporating alcohol into vapour - is changing alcohol from liquid to a gas. (c) drying wood in a shed - is simply allowing Amy moisture present in the wood to evaporate. In all three of these cases the original material remains chemically unchanged. in (d) burning coal in a furnace - the cellular structure of the wood is broken down by heat - the individual wood cells are destroyed, turning it from cellulose to carbon.
A king cobra keeps from drying out by shedding its skin. King cobra shed their skins 4-6 times per year for adults, and every month for juveniles.
no
They shed one and grow another
They shed one and grow another
Lumber must be seasoned to prevent it from cracking and warping. After being cut into boards, the lumber is dried (seasoned) in a heated drying shed called a kiln or in the open air.
Ummm I'm pretty sure it must shed it's skin because they don't have fur coats
Saint Bernards typically shed year-round with heavier shedding occurring during the change of seasons in the spring and fall. Regular grooming can help manage their shedding.
No. Koalas do not shed, nor moult nor change form in any way with the changing seasons.
They hibernate, migrate, or grow fur or shed depending on what season it is.