Ben will be conducting an experiment in which he reacts metals with different concentrations of acid in test tubes. what should ben wear to best protect himself during the experiment?

Given that acids burns and the reactions of some metals with acids are violent, you have to protect agains spills and splashes that can seriously harm you: your eyes, your hands, your arms, your feet, even your clothe.

So you shall use:

- Safety glasses (googles)

- Chemical gloves

- Lab coat

-  Closed shoes    

Ithink about 50 % of an original isotope's number of atoms remain

The answer is fossil fuels.