Gold has a density of 19.32 g/cm3 . what is the volume of a sample of gold with a mass of 27.63 grams?

Es and no. Look at your units. 27.63g / 19.32 g, the grams cancel and you're left with a unitless number of 1.430 But 19.32 is not grams. It is "grams for each cubic centimeter" or g/cc aka g/cm^3 Use the correct units and look at the units in your 27.63g / (19.32 g/cc) . The grams cancel. The cc is the denominator of a denominator, which puts it in the numerator, and you get 1.430 cc. So you were correct in your assumption that the answer would yield cubic centimeters. Additional formulas needed: Area: length x width Volume: length x width x height or since lenth x width = area Volume = area x height for part b you will need the formula for volume of a cylinder: area of a circle x height area of a circle = pi x radius^2 

Reference https://www.physicsforums.com/threads/find-the-area-of-a-leaf-of-gold.107955/

4- c, because all matter stays the same no matter what. it is still there. 5- b, because matter is known as mass. 6-c because, flammability is a chemical property. malleability is changing the shape of an object.