24 An experiment requires that each student use an 8 An experiment requires that each student use an 8.5-cm length of Mg ribbon. How many students can do the experiment with 570-cm of ribbon available?67 students
25 Convert0.044 km to meters4.6 mg to grams0.107 g to centigrams15 cm3 to liters7.38 g to kg6.72 s to milliseconds
26 The radius of the potassium atom is 0. 227 nm The radius of the potassium atom is nm. Express this radius in centimeters.2.27 x 10-8 cm
27 Density Is the ratio of an objects mass to its volume. It can also be thought of as an equality.Density of gold=19.3g/cm319.3g Au = 1 cm3 Au
28 Gold has a density of 19. 3 g/cm3 Gold has a density of 19.3 g/cm3. What is this density in kilograms per cubic meter ?1930 kg/m3
29 A student finds a shiny piece of metal she thinks is aluminum A student finds a shiny piece of metal she thinks is aluminum. She measures the mass to be 612 g and the volume to be 245 cm3. Is the sample aluminum?Why or why not?
30 What is the volume of 4.62 g of mercury? What is the mass of 2.00 L of corn oil?What is the volume of 1.25 kg of air?