1.Формула некоторого вещества Х2О3. Относительная молекулярная масса этого вещества 160.
А). Определить элемент Х, записать формулу и назвать соединение, о котором
идет речь.
Б). Какую валентность имеет феррум в данном соединении? Какой ион соответствует данной валентности
феррума?

👇

Увидеть ответ

Ответ:

89051682007

11.09.2020

это-Fe феррум

МрFe2O3=56×2+16×3=160г/м

валентность +2;+3

4,4(88 оценок)

Открыть все ответы

Ответ:

hfdgddcju

11.09.2020

Только 12
1) A inflateble boat is the best water transprt to fish.
2) I adore travelling down a river on canoe.
3) I travell on the ship every sunmer because I like sea.
4) I would like to have a yacht but it is very expensive.
5) I reckon that jet ski is very dangereous but i like it very much.
6) My father is he capitan of cargo ship.
7) I like sailing & do it every summer holidays.
8) I think that catamaran is the best water transport.
9) I find the air transport very dangereous that is why I am going to travell by cruise ship this summer.
10) Japanese ships are the best in the world.
11) The company have bought 20 steamships for the future success work.
12) Water transport is very good way to reach the island

4,8(23 оценок)

Ответ:

olsanskijartur

11.09.2020

Ivan Ivanovich Shishkin is a famous Russian artist (landscape painter, painter, engraver) and academician.Ivan was born in the city of Yelabuga in 1832 in a merchant family. The artist received his first education in the Kazan Gymnasium. After studying there for four years, Shishkin entered a Moscow school of painting.After graduating from this school in 1856, he continued his education at the Academy of Fine Arts of St. Petersburg. Within the walls of this institution Shishkin received knowledge until 1865. In addition to the academic drawing, the artist also honed his skills outside the Academy, in various picturesque places of the suburbs of St. Petersburg. Now the paintings of Ivan Shishkin are valued as high as ever.
In 1860, Shishkin received an important award - the Academy's gold medal. The artist goes to Munich. Then - in Zurich. Everywhere he works in the workshops of the most famous artists of the time. For the painting "View in the vicinity of Dusseldorf" he soon received the title of academician.In 1866, Ivan Shishkin returned to St. Petersburg. Shishkin, traveling in Russia, then presented his paintings at various exhibitions. He painted a lot of pictures of a pine forest, among the most famous are "Creek in the Forest", "Morning in the Pine Forest", "Pine Forest", "Fog in the Pine Forest", "Nature Reserve. Pinery". Also, the artist showed his paintings in the Association of traveling exhibitions. Shishkin was a member of a circle of aquafortists. In 1873, the artist received the title of professor at the Academy of Fine Arts, and after some time was the head of the training workshop.THE CREATIVITY OF IVAN IVANOVICH SHISHKINEarly CreativityFor the early works of the master ("View on the Island of Valaam", 1858, the Kiev Museum of Russian Art, "Felling Forest", 1867, the Tretyakov Gallery) is characterized by some fractional forms; Adhering to the traditional "romanticism" of the "backstage" construction of the picture, clearly marking out the plans, he does not yet achieve a convincing unity of the image.
In such films as "Noon. In the vicinity of Moscow "(1869, ibid.), This unity appears already an obvious reality, primarily due to the subtle compositional and light-air-color coordination of the zones of sky and earth, the soil (the latter Shishkin felt particularly penetrating, in this respect not having himself Equal in the Russian landscape art).MaturityIn the 1870s. Ivan Shishkin was at the time of unconditional creative maturity, which is evidenced by the paintings "Pine Forest. Mastwood in the Vyatka province "(1872) and" Rye "(1878, both - the Tretyakov Gallery).
Usually avoiding unsteady, transitional states of nature, the artist Ivan Shishkin fixes its highest summer flowering, achieving an impressive tonal unity precisely at the expense of bright, midday, summer light, which determines the entire color scale. Monumental-romantic image of Nature with a capital letter is invariably present in the pictures. New, realistic trends, appear in that penetrating attention with which signs of a specific piece of land, a corner of a forest or field, a particular tree, are written out.
Ivan Shishkin is a wonderful poet not only of soil, but also of wood, which subtly senses the character of each breed [in his most typical records, he usually mentions not just a "forest" but a forest of "sedge, elms and some oaks" (diary of 1861) or "Spruce, pine, aspen, birch, lime tree" (from a letter to IV Volkovsky, 1888)].

With special enthusiasm the artist writes breeds the most powerful and strong type of oaks and pines - in the stage of maturity, old age and, finally, death in the windbreak. Classical works of Ivan Ivanovich - such as "Rye" or "Among the valley of the flat ..." (the painting is named after the song by AF Merzlyakov, 1883, the Kiev Museum of Russian Art), "Lesnye dali" (1884, Tretyakov Gallery) - are perceived as Generalized, epic images of Russia.
Artist Ivan Shishkin equally work out both kinds of views, and forest "interiors" ("Pine trees illuminated by the sun", 1886, "Morning in the Pine Forest" where bears were written by KA Savitsky, 1889, both in the same place). His drawings and sketches, which are a detailed diary of natural life, have independent value.

4,5(31 оценок)

Это интересно:

Питомцы-и-животные

23.03.2021

Как правильно обращаться с агрессивной кошкой...

Кулинария-и-гостеприимство

17.06.2022

Как приготовить вкусный русский салат...

Кулинария-и-гостеприимство

27.09.2021

Как правильно и быстро подготовить корень имбиря к приготовлению...

Стиль-и-уход-за-собой