Mixing is a physical process.
No, it is only a physical change since the chemical properties of alcohol do not change.
Yes, the combination of hydrogen and oxygen to form water is a chemical change. In this reaction, new bonds are formed and energy is released, resulting in a new substance with different properties than the original elements.
Burning alcohol is a chemical change because it involves a chemical reaction where the alcohol molecule is broken down into different substances (such as carbon dioxide and water) with new properties. Energy is released during the reaction, and the composition of the alcohol is permanently altered.
Alcohol is changed to acetaldehyde in the liver, then finally is converted to acetic acid and water.
No, this is definitely a physical change, absolutely not a chemical.
No, it is only a physical change since the chemical properties of alcohol do not change.
Burning alcohol in oxygen is a chemical change because it involves a chemical reaction that produces new substances with different properties. The alcohol (ethanol) reacts with oxygen to form carbon dioxide and water vapor, which are completely different from the original alcohol molecules.
Yes, the combination of hydrogen and oxygen to form water is a chemical change. In this reaction, new bonds are formed and energy is released, resulting in a new substance with different properties than the original elements.
Burning alcohol is a chemical change because it involves a chemical reaction where the alcohol molecule is broken down into different substances (such as carbon dioxide and water) with new properties. Energy is released during the reaction, and the composition of the alcohol is permanently altered.
No. If you heat liquid alcohol enough it will evaporate and you will have alcohol vapor, but its still alcohol. Making it a physical change. If you expose alcohol to a flame and burn it, that will change the alcohol into carbon dioxide and water, then it's a chemical change.
a chemical change that can be accelerated by limited increased temperature
The fact that isopropyl alcohol mixes with water is a physical property. It is based on the physical interactions between the molecules of isopropyl alcohol and water, without any chemical change taking place.
Take this as a note. A mixture is always a physical change, as you can simply evaporate the water and have Urea again. Chemical change always involves the changing of reaction properties amongst its reactants.
Alcohol is changed to acetaldehyde in the liver, then finally is converted to acetic acid and water.
The chemical reaction of water with sodium is a chemical change.
chemical
No, spilling water is a physical change, not a chemical change. A chemical change involves a change in the chemical composition of a substance, whereas spilling water only changes its location and physical state.