Melting is a physical property and a physical change to wax. We know
this because although the wax might melt, it will resolidify into its
original form. Flammability, however, is a chemical change because the
act of burning involves a chemical reaction between the gases in the air
and heat, which cannot be reversed.
Answer:
Besides electrical, chemical, and thermal energy, some other forms of energy include mechanical and sound energy. Any of these forms of energy can change into any other form. Often, one form of energy changes into two or more different forms.
Sufficient energy upon collision of particles and correct orientation of particles
The incorrect rule for assigning oxidation numbers is Hydrogen is usually –1.
Hydrogen is usually +1
<h3>What is oxidation number?</h3>
Oxidation numbers can be defined as that number which is assigned to an element in chemical reaction which represents the number of electrons lost or gained.
So therefore, the incorrect rule for assigning oxidation numbers is Hydrogen is usually –1.
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