Помогите пожалуйста с 6 задания

Составить уравнение, в котором нужно доказать кислотный характер оксида бериллия всеми возможными способами. Спасибо заранее!

напишите пожалуйста топик по тексту🙏

US CONSTITUTION

The form of the US government is based on the Constitution of 1787, adopted after the War of IndependenceVA "constitution" in American political language means the set of rules, laws, regulations and customs which together provide the political norms or standards regulating the work of the government. The document known as the Constitution of the United States, though a basic document, is only a part of the body of rules and customs which form the whole of the American Constitution.

Supreme Court decisions, interpreting parts of the US Constitution, laws, regulations, customs are part of the basic law (the so-called live constitu-tion). Most historians regard the US Constitution as an essentially conservative document.

The US Constitution consists of the Preamble, seven articles and twenty six amendments, the first ten of them called collectively the Bill of Rights and adopted under the popular pressure in 1791. When the Constitution was first proposed in 1787, there was widespread dissatisfaction because it didn't contain guarantees of certain basic freedoms and individual rights. The Constitution consolidated those gains of the revolution that were advantageous for the capitalist class. Significantly, nothing was said about the elementary bourgeois-democratic freedoms. In December, 1791, the Congress adopted ten amendments to the Constitution, known as the Bill of Rights. The Bill enumerated what the government controlled by the oligarchy was not going to be allowed to do. It was, of course, an important democratic gain for the people at that time. But nowadays some of these ten amendments are relatively unimportant.

The Bill of Rights is sometimes violated by the judicial and law enforcement practice.

v Americans feel that of all the freedoms proclaimed in the Constitution only one freedom - freedom of enterprise is in fact guaranteed.

If there is no freedom to work, no guaranteed labour, you face unemployment and poverty. The main freedoms after all a man needs are a life of security, a guaranteed income and guaranteed health care.

Хорда, длиной 30см перпендикулярна диаметру и делит его на отрезки в отношении 1:9. Вычислите радиус окружности. (начертите рисунок)

Дано:

Pводы - 1000кг/м³

Pртути - 13600кг/м³

Pкеросина - 800кг/м³

hр - одинаковая

hв - 20см

hк - ?

Где P - плотность жидкости, где h - высота столба.

Нужно найти высоту столба керосина(hк)

Задача представленна в том виде, в котором дал ее преподаватель.

Прошу, помогите пожалуйста