Properties Of Metals
Akopọ
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.
Awọn Afojusun
- [Core] 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
- [Core] Describe the general chemical properties of metals, limited to their reactions with: (a) dilute acids (b) cold water and steam
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Gba ohun elo Green Bridge CBT sori foonu tabi kọmputa rẹ lati ri awọn akọsilẹ ẹkọ ni kikun, awọn ibeere adaṣe, ati diẹ sii.
Ìdánwò Ẹ̀kọ́
Oriire fun ipari ẹkọ lori Properties Of Metals. Ni bayi ti o ti ṣawari naa awọn imọran bọtini ati awọn imọran, o to akoko lati fi imọ rẹ si idanwo. Ẹka yii nfunni ni ọpọlọpọ awọn adaṣe awọn ibeere ti a ṣe lati fun oye rẹ lokun ati ṣe iranlọwọ fun ọ lati ṣe iwọn oye ohun elo naa.
Iwọ yoo pade adalu awọn iru ibeere, pẹlu awọn ibeere olumulo pupọ, awọn ibeere idahun kukuru, ati awọn ibeere iwe kikọ. Gbogbo ibeere kọọkan ni a ṣe pẹlu iṣaro lati ṣe ayẹwo awọn ẹya oriṣiriṣi ti imọ rẹ ati awọn ogbon ironu pataki.
Lo ise abala yii gege bi anfaani lati mu oye re lori koko-ọrọ naa lagbara ati lati ṣe idanimọ eyikeyi agbegbe ti o le nilo afikun ikẹkọ. Maṣe jẹ ki awọn italaya eyikeyi ti o ba pade da ọ lójú; dipo, wo wọn gẹgẹ bi awọn anfaani fun idagbasoke ati ilọsiwaju.
- 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
O wa lori ohun elo Green Bridge
Gba ohun elo Green Bridge CBT sori foonu tabi kọmputa rẹ lati ri awọn akọsilẹ ẹkọ ni kikun, awọn ibeere adaṣe, ati diẹ sii.
O wa lori ohun elo Green Bridge
Gba ohun elo Green Bridge CBT sori foonu tabi kọmputa rẹ lati ri awọn akọsilẹ ẹkọ ni kikun, awọn ibeere adaṣe, ati diẹ sii.
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