Answer:
The Law of Definite Proportions ensures that chemical compounds are always created using the same proportions, regardless of the amount of the compound which is being made
That is a chemical change.. Hope I helped!
The answer is 72973739373
B. 8
Although it may seem that transition metals would have more than 8 valence electrons, they in fact do not.
Acid and bases both are the substances that cause corrosion. They can be differentiated on the basis of properties and pH.
If the pH is less than 7.0 the solution is acidic while if its value is greater than 7.0 it is the basis solution.
Examples:
Acid
Acetic acid has pH value 2.4
Sulphuric acid has pH value 0 for 1M solution
Base
pH of ammonia solution is 11
