After a certain amount of zinc is fully reacted with 100ml18mol / L concentrated sulfuric acid, the zinc is completely dissolved and the gas a33.6l (standard condition) is generated. Dilute the reaction solution to 1L and measure that C (H +) = 0.1mol (1) Composition of gas a（ (2) What is the volume ratio of the components in a（ (3) The mass of zinc consumed in the reaction is（ (4) The total amount of material that transfers electrons in the reaction is () moles? I'm counting 1.H2 SO2 2.H2:SO2=13:2 3.95.5g 4.3.4 moles
It looks familiar. Try to answer. First, 33.6l gas is 1.5mol. At first, it is 18 * 0.1 * 2 = 3.6molh +, then there is 0.1molh +, and 3.5molh + is consumed. If all H2 is 1.75molh2, all SO2 is 0.875mol SO2, then x + y = 1.5, x + 2Y = 1.75, H2 is 1.25mol, so
The number of electrons in the outermost layer of an alkali metal atom is______ One, they are easy in chemical reactions______ (fill in "get" or "lose") electrons; among alkali metal elements, __ (fill in the element symbol, the same below), the one with the smallest atomic radius is _. The number of electrons in the outermost layer of halogen atoms is __, and they are easy to get __ electrons in chemical reaction; among halogen elements, __ is the most non-metallic, and the one with the smallest atomic radius is _
The most atomic layer of alkali metal elements has only one electron. In order to achieve stable structure, it is particularly easy to lose electrons in the reaction and show strong reducibility. Alkali metals are located in group IA in the periodic table of elements. According to the progressive law of the properties of elements of the same main group, from top to bottom, the atomic radius increases in turn, the metallicity increases in turn, and CS has the strongest metallicity, The smallest atomic radius is Li;
The most atomic layer of halogen elements has seven electrons. In order to achieve stable structure, it is particularly easy to obtain one electron in the reaction, showing strong oxidation. Halogen elements are located in group V Ⅱ a in the periodic table. According to the progressive law of the properties of elements of the same main group, from top to bottom, the atomic radius increases in turn, the non-metallic property decreases in turn, and F is the most non-metallic, The smallest atomic radius is f;
So the answer is: 1; lose; Cs； Li； 7； 1； F； F．
Are alkali metal elements more metallic and more alkaline Such as title
1 \ the more active the metal is, the more alkaline the hydrate of its corresponding oxide is
2 \ the stronger the ability to react with water or acid to produce hydrogen, the stronger the metal activity
What is the relationship between metallicity and nonmetallic and gain and loss of electrons?
The metallicity [activity] is strong, the ability to obtain electrons is weak, and the ability to lose electrons is strong. The metallicity of aluminum is not strong (most compounds are covalent, and the highest valence hydroxide is not alkaline), but the metal activity is strong (naturally occurring compounds are basically composed of electron losing compounds)
Strong nonmetallic, strong ability to gain electrons and weak ability to lose electrons
Is it true that the more electron layers, the stronger the metallicity, the stronger the metallicity and the stronger the reducibility?
The premise is that for the same main group of metal elements: the more electron layers (the weaker the attraction to the outermost electron), the easier it is to lose the outermost electron and the stronger the metallicity (i.e. the stronger the reduction)
What do metallic and non-metallic elements mean What is the difference between metallicity and reducibility? What's the difference between oxidation and nonmetal?
The nature of electron loss of an element atom is metallic, and the nature of electron gain of an element atom is nonmetallic
The property of losing electrons in a substance is called reducibility, and the property of gaining electrons in a substance is oxidation. In this case, a substance can be an atom, molecule or ion. While metallic and nonmetallic properties can only lose electrons on the basis of atoms