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Прочитайте текст и найдите соответствующий перевод подчеркнутого слова. Compound is a substance in w...: ответ на тест 1072220 - Английский язык

Прочитайте текст и найдите соответствующий перевод подчеркнутого слова.
Compound is a substance in which the atoms of two or more elements are joined together by chemical bonds. Because of these bonds, it is very difficult to split a compound into its individual elements. The type and number of bonds formed depend on the electrons (particles with a negative electrical charge) in each atom. The properties of a compound can be very different from those of the elements it contains. For example, the salt we use in our food is a harmless compound, yet it is made up of two dangerous elements – sodium, which reacts violently with air, and chlorine, which is poisonous in large quantities.
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  • элемент
  • электрон
  • химическое соединение
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Вопрос задал(а): Анонимный пользователь, 13 Ноябрь 2020 в 18:15
На вопрос ответил(а): Анастасия Степанова, 13 Ноябрь 2020 в 18:15

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Вопрос № 1104834

Прочитайте текст и найдите соответствующий перевод подчеркнутого слова.
Compound is a substance in which the atoms of two or more elements are joined together by chemical bonds. Because of these bonds, it is very difficult to split a compound into its individual elements. The type and number of bonds formed depend on the electrons (particles with a negative electrical charge) in each atom. The properties of a compound can be very different from those of the elements it contains. For example, the salt we use in our food is a harmless compound, yet it is made up of two dangerous elements – sodium, which reacts violently with air, and chlorine, which is poisonous in large quantities.
элемент
электрон
вещество
химическое соединение

Вопрос № 912157

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How many types of atom does carbon dioxide have?
Aluminium (Al), water (H2O), oxygen (O2) and carbon dioxide (CO2) are substances. Some substances are elements and some substances are compounds. Elements have only one type of atom whereas compounds have more than one type.
Aluminium is an element: it has only one type of atom (i.e. it has only aluminium atoms). Oxygen has only one type of atom, so it is also an element.
Carbon dioxide has two types of atom (carbon and oxygen), so it is a compound. Sulphuric acid (H2SO4) is also a compound: it has three types of atom (hydrogen, sulphur and oxygen). Water is also a compound.
Carbon dioxide has three types of atom.
Carbon dioxide has one type of atom.
Carbon dioxide has many types of atom.
Carbon dioxide has two types of atom.

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Вопрос № 1072221

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A chemical reaction occurs when substances change into new substances. For this to happen, the bonds between atoms and molecules must break and re-form in different ways. Because the bonds can be strong, energy, usually in the form of heat, is often needed to start a reaction. The new substances have properties different from those of the original substances. Chemical reactions do not occur only in laboratories; they happen all around us – for example, when cars rust and when food is cooked.

Вопрос № 1072222

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The Italian physicist Alessandro Volta was a pioneer in the development of electricity. 1_______. His work impressed the French leader Napoleon Bonaparte, who made him a count. 2_______. Volta also studied the properties of air. 3_______. This work was largely ignored, and the same idea was later advanced by others. 4_______.

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Вопрос № 1072224

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A solution forms when one substance (usually solid) dissolves in another (usually a liquid). The solid breaks up into tiny particles and spreads throughout the liquid. 1_______. Solutions are always clear. 2_______. Solid particles spread throughout the liquid. 3_______. If you leave a suspension to stand, most of the solid particles will eventually sink. 4_______.
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