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What is a sidewalk warmed by the heat of the sun a chemical or physical change?
Wiki User
∙ 6y ago
It undergoes a physical change because the matter that makes up the sidewalk does not change. THe side walk goes through a chemical and physical change because the heat makes it constrict by shacking the particles just like it happens with food
Wiki User
∙ 15y ago
Anonymous
physical change I learned that from ixl when I got the question right
Anonymous
im not sure
Anonymous
Anonymous
physical changes
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Side walk is warmed by the heat of the sun physical or chemical?
The sidewalk being warmed by the heat of the sun is a physical change not a chemical change.
What happens when dry ice is warmed at 1 ATM of pressure?
When dry ice is warmed at 1 atm of pressure, it goes back to its gaseous state or form.
What products are formed when sodium hydroxide is mixed and warmed with ammonium chloride?
The chemical equation for the reaction is NH4Cl(s) + NaOH(aq) → H2O(l) + NH3(g) + NaCl(s) Ammonia gas and a solution of sodium chloride is formed.
When water is warmed from its freezing temperature to its temperature of maximum density it?
expands
What would you see if excess cobalt oxide is warmed with hydrochloric acid?
It changes color for Purple to Blue if it was heated and if it was cooled down then it will change color from purple to pink
Side walk is warmed by the heat of the sun physical or chemical?
The sidewalk being warmed by the heat of the sun is a physical change not a chemical change.
If a dinner plate is being warmed in an oven is it a chemical or physical change?
This is a physical process.
When solid dry ice gets warmed and changes into a gas a physical or chemical property?
The process is a physical process and the actual change is a physical change.
Purple iodine vapor appears when solid iodine is warmed is that chemical or physical change?
Purple vapour appearing = physical
How is heat transferred to sidewalks?
The Sun emits heat in the infrared wavelengths. The sidewalk is warmed by those direct rays.
Why does the temp not change as water is warmed up?
If water is warmed up, then that means that its temperature does change.
Why is it physical change when purple iodine appears when solid iodine is warmed?
Because the Iodine is undergoing a phase change, which is a physical change. The Iodine is going from a solid to a liquid (I presume), and it's changing color. Those are both examples of physical changes. Phase changes are easily reversible without the use of energy, you could just freeze the iodine, and have the solid again. As for the color change, that's true for a lot of elements, like Mercury. This is not an example of a chemical change because not only is it easily reversible, but because no new substance is formed. You still only have Iodine, but in a different phase, and in a different color.
When the earth warmed after the Ice Age what major change happened?
built their homes
Which state of matter shows the largest change in volume when warmed or cooled?
The state of matter that shows the largest change in volume when warmed or cooled is gas. Liquids and solids increase and decrease in volume in response to temperature change as well, but not to the same magnitude as gases.
When the earth warmed after the ice age a change happend in the way people?
secured their food
When the earth warmed after the ice ages a major change happened in the way people?
Secured their food
When the earth warmed after the ice age a major change happens in the way people?
Secured their food
