Lead (II) nitrate reacts with barium chloride. If the reaction is started with 12.6 grams of lead (II) nitrate, what mass of precipitate will be formed?

Why do sodium and neon have vastly different chemical and physical properties despite having similar atomic masses?

Match term definition ellipse a) diagonal cross section of a cylinder circle b) diagonal cross section through the widest part of a sphere sphere c) cross section parallel to the base of a cone great circle d) shape created when a semi-circle is rotated around the y-axis triangle e) perpendicular cross section of a cone

How do you lengthen a pattern piece? (family and consumer science, sewing)