Answer:lumerman.com › catchphrases › catchphrase
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Explanation:
i. When an acid reacts with metal, a salt and hydrogen are produced:
ii. When oxygen and metal react, metal oxide forms also known as rust
iii. metal and water produce hydrogen gas
The more acidic the substance is, the more the iron nails will corrode (this obviously depends on what your experiment is but hope this helped in some way)
i believe the answer is...
Atoms of isotopes of an element have different numbers of protons.
