Предмет: Химия, автор: hiko32

розв"язати реакції(Будь ласка напишить разрахунки атомів)
SiH4 + O2=
Ba +O2 =
PH3 + O2 = (фосфор трьохвалентний)
ZnS + O2 = (сульфур в продуктах реакції проявляє валентність чотири)

Ответы

Автор ответа: MasterBivin
0

SiH4 + 2O2 --> SiO2 + 2H2O

2Ba + O2 --> 2BaO

2PH3 + 3O2 --> P2O3 + 3H2O

2ZnS + 3O2 --> 2ZnO + 2SO2

marinakharchenko27: можете помочь пожалуйста! последний вопрос в разделе химия
Предыдущий вопрос
Следующий вопрос
Похожие вопросы
Предмет: Английский язык, автор: 22231352
Read the following Inaugural speech and parahrase the bookish expressions by more neutral ones.

2. Put each suggested variant into bold/brackets and explain your choice.

During the contest of opinion through which we have passed the animation of discussions and of exertions has sometimes worn an aspect which might impose on strangers unused to think freely and to speak and to write what they think; but this being now decided by the voice of the nation, announced according to the rules of the Constitution, all will, of course, arrange themselves under the will of the law, and unite in common efforts for the common good. All, too, will bear in mind this sacred principle, that though the will of the majority is in all cases to prevail, that will to be rightful must be reasonable; that the minority possess their equal rights, which equal law must protect, and to violate would be oppression. Let us, then, fellow-citizens, unite with one heart and one mind. Let us restore to social intercourse that harmony and affection without which liberty and even life itself are but dreary things. And let us reflect that, having banished from our land that religious intolerance under which mankind so long bled and suffered, we have yet gained little if we countenance a political intolerance as despotic, as wicked, and capable of as bitter and bloody persecutions. During the throes and convulsions of the ancient world, during the agonizing spasms of infuriated man, seeking through blood and slaughter his long-lost liberty, it was not wonderful that the agitation of the billows should reach even this distant and peaceful shore; that this should be more felt and feared by some and less by others, and should divide opinions as to measures of safety. But every difference of opinion is not a difference of principle. We have called by different names brethren of the same principle. We are all Republicans, we are all Federalists. If there be any among us who would wish to dissolve this Union or to change its republican form, let them stand undisturbed as monuments of the safety with which error of opinion may be tolerated where reason is left free to combat it. I know, indeed, that some honest men fear that a republican government can not be strong, that this Government is not strong enough; but would the honest patriot, in the full tide of successful experiment, abandon a government which has so far kept us free and firm on the theoretic and visionary fear that this Government, the world's best hope, may by possibility want energy to preserve itself? I trust not. I believe this, on the contrary, the strongest Government on earth. I believe it the only one where every man, at the call of the law, would fly to the standard of the law, and would meet invasions of the public order as his own personal concern. Sometimes it is said that man can not be trusted with the government of himself. Can he, then, be trusted with the government of others? Or have we found angels in the forms of kings to govern him? Let history answer this question.
11 месяцев назад
Предмет: Химия, автор: sofiazajceva123
Розвʼяжіть задачу
(напишіть що має бути в дано та розвʼязання)

У воді масою 874 г розчинили 2 моль нітратної кислоти. Встановіть масову частку • кислоти в розчині

дам 100б
11 месяцев назад
Предмет: Математика, автор: Аноним
петрик розставив зроблені ним моднлі автомобілів порівну на 14 полицях а потім переставив іх теж порівно на 8 полиць скільки моделей було у петрика якщо відомо що іх в нього було більше за 100 і менше від 120
11 месяцев назад
Предмет: Русский язык, автор: ilasmix82
Телеф_нист с_дел обхватив колени и опершись на них лбом
6 лет назад
Предмет: Русский язык, автор: profapchas
Согласуй причастные обороты с определяемыми словами, поставь запятые.
Пример:
«Окно (плотно завешенный) не пропускало света». — «Окно, плотно завешенное, не пропускало света».
1. Море (плескавшийся у берега) сверкало фосфорическим блеском. —

2. Документы (потерянный в прошлом году) нашлись в старом пальто. —

3. Пионы (распустившийся в нашем саду) ароматно пахли. —
6 лет назад