Recognize the chemical properties of metal

High school chemistry synchronous lecture

Lecture: Teacher Zong Wei

Shaanxi Province's first provincial high school chemical backbone teachers and teaching experts, outstanding counselors of national chemistry competitions, senior chemical teachers in middle school, once taught in Xi'an No. 1 Middle School, Xi'an E -Science and Technology University Affiliated High School, West Institute of Technology Cultural Tuition School, and Xi'an Huanggang Cultural Tuition School

Is all metals be solid at normal temperature?

uncertain. For example, HG is liquid at room temperature.

2. The relationship between atomic structure and chemistry

1. The following narrative about the nature of the metal element is correct (b)

A. The atoms of the metal element are only restored, and ions are only oxidized

B. Metal elements must be priced in a positive talle in the compound

C. Metal elements all exist in nature in nature

D. Metal elements are solid at room temperature

2. The following narrative about metal properties is correct (A)

A. Metals are generally easy to conduct electricity, heat conduction, and have ductility

B. Metals have high hardness and density

C. All metals are solid

D. Metal monomers can react with dilute sulfuric acid reactions to produce hydrogen

Metal activity method of judgment

(1) The extent of the metal and water reaction, the more intense the reaction, the more lively metals.

(2) The degree of intensity of the acid reaction of the metal and the same concentration, the more violent the reaction, the more lively metal.

(3) The reaction of the metal and salt solution, the strong metal can replace the weaker metal from its salt solution.

(4) The oxidation of metal ions is strong and weak, the stronger the oxidation of the metal cation, and the weaker its single quality.

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