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Can substances that have undergone a physical change be changed back to their original state?
Yes
Is Saliva breaking down bread is it a change of state?
Saliva breaking down bread involves a chemical reaction where enzymes in saliva break down complex molecules in bread into simpler ones for digestion. This is a chemical change rather than a change of state.
What the of change is a change of state?
The solid wax of the candle melts, and eventually vapourises, then burns and becomes a gas.
How do redox reaction differ from other type of chemical reactions?
Yummy, Chemistry :) Redox reactions - Oxidation reaction This is a reaction in which atoms have undergone a change in their oxidation state.
What is the change of state in a lit candle?
The change of state in a lit candle is from solid (wax) to liquid (molten wax) to gas (vaporized wax) as the heat from the flame melts the wax and turns it into vapor that burns, releasing heat and light.
Is a wet handkerchief is physical or chemical change?
A wet handkerchief is a physical change. The water has only physically changed the state of the handkerchief by being absorbed, but the handkerchief itself has not undergone a chemical transformation.
When was Julia Pfeiffer Burns State Park created?
Julia Pfeiffer Burns State Park was created in 1962.
Which Malaysian state does Gardenia bread originate?
Sabah is the state that first produced the Gardenia bread in 1969.
What physical and chemical changes occur when a wax candle burn?
Some wax burns, and as it does so, chemical changes occurs. Wax converts to CO2, CO, and H2O. That is an exothermic reaction The rest of the wax melts with the increased temperature. That is the physical change.
Why is being flammable a chemical property rather than a physical property?
Physical properties of an element are those in which there is no change in its state. For example, the color and density of an element are physical properties. If an element is flammable, it goes through a reaction and burns, and there is a change in state. When there is a reaction that results in a change of state, Flammability is a chemical property.
What is the area of Julia Pfeiffer Burns State Park?
The area of Julia Pfeiffer Burns State Park is 15.225 square kilometers.
What state is called the bread basket?
Kansas-"America's Bread Basket"
