Properties of metals：練習題

A student adds a small piece of magnesium to a test-tube containing dilute hydrochloric acid. A gas is produced. Which test and result would identify this gas?

Which observation is most likely when a small piece of calcium is added to a beaker of cold water?

Why can pure metals be hammered into different shapes without the structure shattering?

Which property is a general physical property of most metals?

Which property allows metals to be drawn out into thin wires for use in electrical circuits?

Identify the specific physical property of copper that makes it an ideal material for the base of high-quality cooking pans.

Describe the visible observation when magnesium ribbon is heated in oxygen and provide the word equation for the reaction.

Predict the observations when a piece of zinc is added to dilute hydrochloric acid and describe the chemical test used to identify the gas produced.

Metals exhibit several characteristic chemical properties.
(a) Describe the general observations when a piece of magnesium is added to a test-tube containing dilute hydrochloric acid.
(b) Write the general word equation for the reaction between a metal and a dilute acid.
(c) State the test and the positive result for the gas produced in this reaction.