Ineed asap will give brainliest to first right answer write the equation for the reaction that produces solid iron (ii) sulfide from iron and sulfer

What is the percentage of hydrogen in c2h4

#7 how does the structure of amino acids allow them to form a polypeptide? each amino acid has an amino group and a carboxyl group. each amino acid has a hydrogen atom and a carboxyl group. each amino acid has a carboxyl group and an r group. each amino acid has an r group and a hydrogen atom.

Gasoline has a density of 0.740 g/ml. if you have 328 grams of gasoline, what is the volume in milliliters?