Isotopes
Mass atom of Neon: 20.1797 amu
Mass atom X = mass isotope 1 . % + mass isotope 2.% +.....

A precipitate will form since BaSO₄ is insoluble in water.
Answer: The student should have worn splash goggles, an apron, and gloves during the investigation.
Explanation:
Nucleotide bases bonded to a sugar phosphate backbone make up nucleic acids such as DNA (deoxyribonucleic acid) and RNA (<span>ribonucleic acid)</span>. Nucleotides have three major parts: sugars, phosphates, and a nitrogenous base. DNA uses four nitrogenous bases: Adenine, Guanine, Cytosine, and Thymine. RNA uses the same bases except for Thymine, which is replaced by Uracil.