CHM 130 Lesson 2 Test Questions and Correct Answers

Volume The measurement of the amount of space an object takes up If a brick is chopped in half, what is the density of the half of block? a. the same as the whole block. b. less than the whole block c. more than the whole block d. exactly half of the whole block a. the same as the whole block What is the density of an object that has a mass of 0.240 g and a volume of 1.39 mL? 0.245 g/mL What is the volume of a piece of metal that has a density of 4.52 g/cm^3 and a mass of 93.2 g? 20.6 cm^3 What is the mass of an object that has a volume of 602 mL and a density of 1.49 g/mL? 895 g Is water a pure substance or mixture? Pure substance Is kool-aid a pure substance or mixture? Mixture Is mud a pure substance or mixture? Mixture Is carbon a pure substance or mixture? Pure substance Is strontium an element or a compound? Element Is carbon dioxide (CO2) an element or a compound? Compound Is oxygen an element or a compound? Element Is calcium nitride (Ca3N2) an element or a compound? Compound Is vinegar homogenous or heterogenous? Homogenous Is salt water homogenous or heterogenous? Homogenous Is a chocolate chip cookie homogenous or heterogenous? Heterogenous