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When a cup of hot tea cools down is that a chemical change?
When a cup of hot tea cools down, it is a physical change, not a chemical change. The molecules in the tea are simply rearranging as the temperature drops, but the chemical composition of the tea remains the same.
When temperature decreses what is the speed of chemical change?
When temperature decreases, the speed of chemical change generally decreases as well. This is because lower temperatures reduce the kinetic energy of the molecules, slowing down their movement and collision rates, which are essential for chemical reactions to take place.
Is breaking down a physical or a chemical properties?
Since in breaking down there is no chemical change it's a physical change
A car battery runs down a physical change or chemical change?
i tink that it is a physical change
Is the intestines breaking down food a physical change or a chemical change?
Physical or chemical
What happen to the speed of sound in the air when the temperature goes down?
If the temperature goes down, the speed of sound goes also down. Speed of sound in air is c ≈ 331 + 0.6 × T. T = Temperature in °C. Speed of sound in air at 20°C is c ≈ 331 + 0.6 × 20 = 343 m/s.
What does an increase in temperature result to?
An increase in temperature can lead to the expansion of materials, a change in state (for example, from solid to liquid), an increase in the speed of chemical reactions, and can also cause biological processes to speed up or slow down.
What kind of change does condensation represent and why?
Condensation represents a physical change as it involves the phase transition of a gas to a liquid. This change occurs when the temperature of the gas decreases, causing the gas molecules to slow down and come closer together, forming a liquid.
Does a lower temperature speed up or slow down ripening of fruit?
lowering the temperature does speed up ripening fruit. if you raise the temperature then it will have to be thrown out. ssry
Is boiling a chemical or physical change?
When water boils, it is a physical change.
As air becomes warmer how does the speed of sound in air change?
If the temperature goes down, the speed of sound goes also down. Speed of sound in air is c ≈ 331 + 0.6 × T. T = Temperature in °C. Speed of sound in air at 20°C is c ≈ 331 + 0.6 × 20 = 343 m/s.
How do you change the temperature of a reaction?
You can change the temperature of a reaction by heating or cooling the reaction vessel using a heat source or a cooling system. Increasing the temperature can speed up the reaction by providing more energy for the molecules to react, while decreasing the temperature can slow down the reaction by reducing the energy available for the reaction to occur.
