Which of the following gases in Earth's atmosphere would you expect to find as molecules and which as individual atoms? Explain a. Nitrogen
b. Oxygen
c. Argon

Write the complete balanced equation for the reaction between lead (iv) oxide (pbo2) and water (h2o).

Suppose the universe were completely empty except for one object-a solid sphere moving through space of 100 km/s. what sort of path would the object be moving in? explain your answer

#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.