(1) QID: 1040The melting point of the metal gallium is 30°C. Normal body temperature is about 37°C. When a person holds a piece of gallium it tends to melt. This is an example of what type of change?a change in compositiona physical changea chemical changea change in mass (2) QID: 1042Color hardness solubility mass density volume and melting point are all examples of what type of property of substances?physicalchemicalintensiveextensive (3) QID: 1043The odor of a solution is an example of what type of measurement?chemicalqualitativequantitativecompositional (4) QID: 1044Table salt or sodium chloride melts at 801°C and boils at 1413°C. When table salt is melted and then boiled what type of change(s) occur(s)?chemical and physical changesphysical change onlychemical change onlyneither chemical nor physical changes (5) QID: 5751True or false?Since mass and volume are extensive properties and density is the ratio of mass to volume density is also an extensive property.truefalse (6) QID: 8017What is the general term for a factor that you can measure about matter that does not require a change of composition?reactivityflammabilityphysical propertychemical property (7) QID: 8018A physical property such as mass or volume that depends on the amount of matter is calledan extensive propertya chemical propertyan intensive propertywater sensitivity (8) QID: 8019A qualitative measurement (as opposed to a quantitative measurement) is an analysis that yields descriptive nonnumeric results. Which of the following is not a qualitative measurement?colortastemassodor (9) QID: 8020Which of the following is an extensive physical property?temperaturemassodormelting point (10) QID: 8021Suppose that a man complains of feeling feverish. He says that he has an aching sensation in his joints and that he thinks he has a fever. He then uses a thermometer to find that he has a temperature of 101°F. The man’s descriptions of his condition are examples of what type(s) of measurement(s)?quantitative measurementqualitative measurementquantitative and qualitative measurementneither quantitative or qualitative measurements
