colour change
gas bubbles
new substance formed
texture changes
something else i don't know about.
A reaction that is obvious when telling a lie is a psychological reaction. People subconsciously do these things, and show signs of distress, because they are scared.Ê
There could be many possibilities depending of the reaction. Some of them are change in colour, odour, evolution of gases, formation of precipitate etc
Signs of a physical reaction can include changes in appearance, such as swelling, redness, or rashes; alterations in bodily functions, like increased heart rate or difficulty breathing; and symptoms like nausea or vomiting. Other indicators may involve pain or discomfort in specific areas, muscle tension, or fatigue. These reactions can result from various stimuli, including allergens, infections, or physical injuries.
what are the physical signs of high cholesterol?
Signs of a chemical change include the formation of a new substance, a change in color, production of gas or bubbles, release of heat or light, and a change in odor. These changes are not easily reversible and often involve the rearrangement of atoms.
It is a physical property not a reaction
No. A slushy is a physical reaction. The mixture is frozen, therefore it is 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.
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.
Astrological signs will not affect reaction rates.
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
a physical reaction for the chemical structure is not changing.