Part A Classify each of the following as a pure substance or a mixture. If a mixture, indicate whether it is homogeneous or heterogeneous. Drag the appropriate items to their respective bins. Pure substance sugar crystals sawdust Homogeneous mixture cola with ice air Heterogeneous mixture Reset Hel

How do we know a substance is a compound, mixture or element?

Decide whether each sketch shows a pure sample of an element or a pure sample of a compound. R Substance A 48 P element compound * Substance C element compound * Substance B 9 8989 O element compound Substance D element compound

A piece of metal with a mass of 114 g was placed into a graduated cylinder that contained 25.00 mL of water, raising the water level to 42.50 mL. What is the density of the metal? 7.25 g/cm³ 2.68 g/cm³ • 6.51 g/cm³ Which of the following is an example of a heterogeneous mixture? • iron • tin can 0.154 g/cm³ 0.592 g/cm³ brass gravel uranium How many cubic centimeters of ore containing 0.22% by mass gold must be processed to obtain $100 worth of gold? The density of the ore is 8.0 g/cm³ and the price of gold is $418 per troy ounce. (14.6 troy oz = 1.0 ordinary pound, called an avoirdupois pound; 1 lb = 454 g) 9.3 x 10¹ cm3³ • 4.2 x 10² cm³ • 6 200 cm³ 42 cm³ • 2.7 x 104 cm³