Zoom in to see it better but my question is what’s the answer to this

2fe+4O2-4fe2O3 is the correct balanced equation

nucleic acid molecules are incredibly complex, containing the code that guarantees the four different nucleotide units comprise dna, the nucleic acid of interest to the genealogist. and one of four nitrogen-containing molecules called nucleotides

sound moves fastest in solids because the molecules are tightly packed and it allows sound to vibrate