A bike rusting is an example of a chemical
change since rusting is a chemical reaction. New substances are formed from
this reaction. On the other hand, other choices given are just physical changes
because only the shape or the physical form of the substances are being
changed. An example of a physical change is cutting a paper.
The answer is b. hot spots
Gray matter hope this helps!
Explanation:
they have different mass number but same atomic number
In chemistry, neutralization<span> or </span>neutralisation<span> (see spelling differences), is a chemical </span>reaction<span> in which an acid and a base </span>react<span> quantitatively with each other. In a </span>reaction<span> in water, </span>neutralization<span> results in there being no excess of hydrogen or hydroxide ions present in solution</span>
<span>2CH3COOH + Sr(OH)2 → (CH3COO)2Sr + 2H2O
ethanoic acid reacts with strontium hydroxide to produce strontium ethanoate plus water.</span>