1-The 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 composition a physical change a chemical change a change in mass 2-Color hardness solubility mass density volume and melting point are all examples of what type of property of substances physical chemical intensive extensive 3-The odor of a solution is an example of what type of measurement? chemical qualitative quantitative compositional 4-Table 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 changes physical change only chemical change only neither chemical nor physical changes 5-True or false? Since mass and volume are extensive properties and density is the ratio of mass to volume density is also an extensive property 6-What is the general term for a factor that you can measure about matter that does not require a change of composition? reactivity flammability physical property chemical property 7-A physical property such as mass or volume that depends on the amount of matter is called an extensive property a chemical property an intensive property water sensitivity 8-A 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? color taste mass odor 9-Which of the following is an extensive physical property temperature mass odor melting point 10-Suppose 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 measurement qualitative measurement quantitative and qualitative measurement neither quantitative or qualitative measurements
