Properties Of Metals
Bayani Gaba-gaba
Metals share a recognisable set of properties: they conduct heat and electricity, can be hammered into shape and drawn into wires, and usually have high melting points. These shared traits, and the chemical reactions metals undergo, explain why metals are so useful and how reactive each one is.
In this lesson you will compare the physical properties of metals and non-metals, then study the general chemical reactions of metals with dilute acids, with cold water and steam, and with oxygen. Together these build a clear picture of how metals behave and why their reactivity differs.
Manufura
- Compare the general physical properties of metals and non-metals, including: (a) thermal conductivity (b) electrical conductivity (c) malleability and ductility (d) melting points and boiling points.
- Describe the general chemical properties of metals, limited to their reactions with: (a) dilute acids (b) cold water and steam (c) oxygen.
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- Which property is typical of a metal but not a non-metal? A. Poor electrical conductivity B. Being brittle C. Being malleable and ductile D. Low melting point Answer: C
- When a metal reacts with a dilute acid, the products are: A. A salt and water B. A salt and hydrogen C. A salt and oxygen D. An oxide only Answer: B
- Which gas is produced when sodium reacts with cold water? A. Oxygen B. Carbon dioxide C. Hydrogen D. Chlorine Answer: C
- A moderately reactive metal such as magnesium reacts with steam to form: A. The metal hydroxide and oxygen B. The metal oxide and hydrogen C. The metal chloride and hydrogen D. The metal only Answer: B
- Which metal does NOT react with dilute hydrochloric acid? A. Magnesium B. Zinc C. Iron D. Copper Answer: D
Yi aikin wadannan tambayoyi a cikin manhaja
Yi aikin wadannan tambayoyi a cikin manhaja
Littattafan da ake ba da shawarar karantawa
Ƙarin koyo daga tushe na buɗe
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Sashen littafi
The Periodic Table
State the periodic law and explain the organization of elements in the periodic table
"Chemistry: The Periodic Table" by OpenStax, OpenStax, Rice University, licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Source: https://openstax.org/books/chemistry/pages/2-5-the-periodic-table. Access for free at https://openstax.org/books/chemistry/pages/1-introduction
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