First let me define covalent and non-covalent bonds.
Covalent bonds are bonds BETWEEN the atoms of a chemical - the atoms share electrons.
Noncovalent bonds are the interactions between atoms (and chemicals) that do NOT involve sharing of electrons. (hydrophobic, hydrophilic, and ionic bonds are non-covalent bonds)
Physical Change: breaking wood in half, melting ice, deflating a balloon, heating/cooling something (burning NOT included), dissolving something (as long as it does not react with solvent). Physical changes do not make or break covalent bonds. Physical changes only break/make non-covalent bonds (such as hydrophobic, ionic or hydrogen bonds).
Chemical Change: burning something, changing the actual chemical makeup in any way - usually by reactions like redox (reduction-oxidation reactions), decomposition and combustion reactions among others. Chemical changes do make and/or break covalent bonds. If the breaking and/or making of covalent bonds occurs - the change is chemical - since you are actually changing the chemical into something new.
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.
A physical change is reversible, a chemical change is not.
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...)
chemical change is easily reversible whilst physical is not reversible
a physical change is reversible like freezing or melting but a chemical change is irreversible like baking a cake, once it's been cooked, you can't get your cake mix bake
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.
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.
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.
A physical change is reversible, a chemical change is not.
a physical change is reversible but a chemical change is irreversible
a physical change is reversible but a chemical change is irreversible
The diffence between chemical and physical is that ones chemical and ones physical!!
what is the difference between a physical change and a physical property
A change of state is a physical change while a chemical change is not
Physical change is homogeneous and vise versa for change (heterogenous)
Physical change, changes the appearance or the surface. Chemical change, changes the minerals inside the object. Physical deals with the appearance and the surface. Chemical changes the structure of the minerals inside the object.
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...)