0
What else can I help you with?
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 process. The sun's rays transfer heat energy to the sidewalk through radiation, causing the molecules in the sidewalk to vibrate more rapidly and increase in temperature. This is a physical change as no new substances are being formed in this process.
What are physical properties of a glass of milk?
change in state change in shape
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.
What is ice warmed to the melting point?
Ice warmed to its melting point will become water. At this temperature, the thermal energy causes the solid ice to transition into liquid water.
Which state of matter shows the smallest change when warmed or cooled?
solid
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 process. The sun's rays transfer heat energy to the sidewalk through radiation, causing the molecules in the sidewalk to vibrate more rapidly and increase in temperature. This is a physical change as no new substances are being formed in this process.
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?
It is a physical change because the iodine is changing state from solid to gas without forming any new substances.
Is the thickening of syrup when it is put into the refrigerator is an example of a chemical change?
No, the thickening of syrup when placed in the refrigerator is not a chemical change; it is a physical change. This thickening occurs due to the decrease in temperature, which affects the viscosity of the syrup without altering its chemical composition. The syrup can return to its original consistency when warmed, demonstrating that no new substances were created.
What things do not change when they are warmed?
Some examples of things that do not change when they are warmed include abstract concepts like emotions or thoughts, as well as certain physical properties of pure substances such as density or mass.
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.
How is heat transferred to sidewalks?
Heat is transferred to sidewalks through conduction, where energy is transferred from the hot surface of the sidewalk to the cooler ground beneath it. Sunlight is absorbed by the sidewalk, heating it up, and then the heat is transferred to the sidewalk material and to the ground underneath.
Is freezing water to make ice a reversible change or a chemical reaction and why?
This is a reversible change because water is still the same substance just in a frozen form. It is not a completely new substance with new properties and the same goes for melting ice to get water. Hope this helped!
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.
