How many atoms of copper in 3. 11 g of copper

Determine the percent sulfuric acid by mass of a 1.61 m aqueous solution of h2so4. %

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

Compare and contrast physical changes with chemical changes.