Topical Questions
These questions are keyed to the major topics in the chapter. Usually a question that is answered at the back of this book is paired with a similar one that is not.
Identify the information in each sentence as qualitative or quantitative.
(a) The element gallium melts at 29.8 °C.
(b) A chemical compound containing cobalt and chlorine is blue.
(c) Aluminum metal is a conductor of electricity.
(d) The chemical compound ethanol boils at 79 °C.
(e) A chemical compound containing lead and sulfur forms shiny, plate-like, yellow crystals.
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