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What is contact reaction in chemistry?
Contact reaction is a type of chemical reaction that occurs when two substances come into physical contact with each other, leading to a chemical change. This type of reaction typically occurs between solids or between a solid and a liquid. It is a specific type of reaction that is different from reactions occurring in solution.
How is melting ice a physical reaction?
it is certainly not a chemical reaction, and it is still melting something, so it is a physical reaction. it does depend HOW you melt it, but other than that, it is a physical reaction.
Is a rainbow a chemical reaction?
No, a rainbow is not a chemical reaction; it is a physical phenomenon. Rainbows occur when sunlight is refracted, dispersed, and reflected in water droplets in the atmosphere, leading to the formation of a spectrum of colors. This process involves the bending of light rather than any chemical change or reaction occurring among substances.
Is mixing flour and rubbing alchohal a physical or chemical?
Mixing flour and rubbing alcohol is a physical change. In this process, the flour and rubbing alcohol retain their individual properties and can be separated again. There is no chemical reaction occurring, as the composition of the flour and the rubbing alcohol remains unchanged.
When wood is burned heat ash and smoke are produced . Describe this reaction and explain what type of change is occurring?
The reaction of the wood burning is Oxidation as wood combines with air, the type of change that is occurring is a chemical change.
How can you determine if a chemical reaction is occurring, and what are two methods to identify this process?
You can determine if a chemical reaction is occurring by observing changes in the physical or chemical properties of the substances involved. Two methods to identify this process are observing the formation of a precipitate or a color change in the reaction mixture.
If you have a forward reaction and reverse reaction occurring together what type of reaction is that?
reversible reaction
Can you example of reaction time in physical fitness?
Most certainly, if one is unfit in body or mind their reaction to any situation can be seriously affected.
Is evaporation of spirit on the skin a physical change?
Yes, evaporation of spirit on the skin is a physical change. It is a phase change where the liquid spirit changes into a gas without any chemical reaction occurring. The process can be reversed by condensation.
In which situation is a chemical reaction occurring?
A chemical reaction occurs when there is a change in the chemical composition of substances involved, resulting in the formation of new substances with different properties. Signs of a chemical reaction include the release of heat or light, formation of a precipitate, color change, or production of gas.
What is contact reaction in chemistry?
Contact reaction is a type of chemical reaction that occurs when two substances come into physical contact with each other, leading to a chemical change. This type of reaction typically occurs between solids or between a solid and a liquid. It is a specific type of reaction that is different from reactions occurring in solution.
Is malleability a physical or chemical reaction?
It is a physical property not a reaction
Is a slushy a chemical reaction?
No. A slushy is a physical reaction. The mixture is frozen, therefore it is a physical reaction.
How is melting ice a physical reaction?
it is certainly not a chemical reaction, and it is still melting something, so it is a physical reaction. it does depend HOW you melt it, but other than that, it is a physical reaction.
Is water a chemical reaction or a physical reaction?
Water is not a reaction at all. If you mean to ask if a state change in water is chemical or physical, it is physical.
Is dissolving sugar a physical reaction?
no, technically there is no such thing as a physical reaction. It is, however, a physical change. when two things react, it is chemical so you cannot have a "Physical" reaction in chemistry
Is dissolving a physical or chemical reaction?
a physical reaction for the chemical structure is not changing.
