0
Can it be difficult to tell the difference between a physical and chemical change?
Wiki User
∙ 8y ago
It is sometimes difficult to decide whether an observed change is physical or chemical because of its expression. Some reactions create subtle changes and some may appear to be physical or chemical until, upon closer observation externally or internally, it is actually turns out to be the opposite.
Wiki User
∙ 9y ago
Wiki User
∙ 13y agoIf it is a physical change it will be temporary. This means that it can be made like it was before but if it is a chemical change it will be permanent and the substance can't be obtained as before. No new substance is formed in a physical change but if a new substance is formed, it is a chemical change. A physical change is always impure but a chemical change is pure.
Wiki User
∙ 11y agoThere could be several reasons. For example, if the reactants and products have similar appearances (i.e. hydrochloric acid & sodium hydroxide react to give water, all of which are colourless) it is hard to see that something has happened. There's normally some way of telling though - for example a temperature change.
Add your answer:
Earn +20 pts
Why is it diffifult to make a list of simple rules that will let you classify a chemical and phyiscal change?
It is not that difficult if you know the difference between a chemical and physical change. A physical change is reversible and a chemical change is not. In a physical change a new substance is not formed. The breaking of glass is not reversible and is physical.
What is difference between physical and chemical balance?
The difference is that chemical equilibrium is the equilibrium of products and reactants in a reaction while physical equilibrium is the equilibrium of the physical states of the same substance.
What is the difference between a chemistry change and a physical change?
what is the difference between a physical change and a physical property
What is the difference between physical and chemical weathering change?
chemical weathering change will most likely make a new substance
What is a the difference between a chemical and physical change?
A physical change can be reversed such as an ice cube melting. A chemical change, on the other hand, cannot be reversed such as burning wood.
What is the difference between chemical change and physical change?
the difference between a physical change and a chemical change is that a physical change is usually reversible whilst a chemical change is not reversible.
what is the difference between chemical change and physical changes?
the difference between a physical change and a chemical change is that a physical change is usually reversible whilst a chemical change is not reversible.
What Is the difference between physical changes and chemical change?
the difference between a physical change and a chemical change is that a physical change is usually reversible whilst a chemical change is not reversible.
What is the difference between a chamical and physical change?
The diffence between chemical and physical is that ones chemical and ones physical!!
What is the difference between a physical and chemical change?
A physical change is reversible, a chemical change is not.
Why is it diffifult to make a list of simple rules that will let you classify a chemical and phyiscal change?
It is not that difficult if you know the difference between a chemical and physical change. A physical change is reversible and a chemical change is not. In a physical change a new substance is not formed. The breaking of glass is not reversible and is physical.
What is the difference between chemical from physical change?
a physical change is reversible but a chemical change is irreversible
What is the difference between chemical physical change?
a physical change is reversible but a chemical change is irreversible
How can you tell the difference between physical and chemical properties?
You can tell the difference by knowing that a physical property changes shape and that a chemical property changes the substance.
What is difference between chemical and physical in acid reactions?
it can bereversible and
What is the difference between a physical charge and a chemical charge?
Your telling me!
Difference between chemical and physical change?
A chemical change is when the chemical properties of a substance changes and a physical change is when the chemical properties stay the same but the physical properties (shape, temperature etc...)
