The chemical composition of the repeat unit for nylon 6,6 is given by the formula c12h22n2o2. atomic weights for the constituent elements are ac = 12, ah = 1, an = 14, and ao = 16. according to this chemical formula (for nylon 6,6), the percent (by weight) of carbon in nylon 6,6 is most nearly:

H2so4(aq) + mg(s)—> mgso4(aq) +h2(g) which substance is the acid in the reaction?

Aglow stick contains a glass vial with chemicals. when the glow stick is bent, the vial breaks and the chemicals react to produce a glow. a science student observes that a glow stick kept in the freezer glows for a longer duration than a glow stick kept at room temperature. what conclusion can be drawn based on the observation? be sure to note the outcome and test variables in the conclusion.

What is the lowest number energy level where a d sublevel is found