Question

Характеристика формул Fe2 O3, Cr (OH)3, Na2 Si O3

Answer 1

Fe2О3(сложное вещество, степень окисления Fe +3, O -2), оксид железа 3

Cr(OH)3 (сложное вещество, гидроксид хрома 3, степень окисления хрома +3, ОН группы -1)
Na2SiO3( сложное вещество, степень окисления Na +1, Si +4, O -2)метасиликат натрия

Answer 2

Formula Characteristics

Here are the characteristics of the given chemical formulas:

1. Fe2O3: - Formula: Fe2O3 - Iron(III) oxide is the chemical name for Fe2O3. - It consists of two iron (Fe) atoms and three oxygen (O) atoms. - Iron(III) oxide is commonly known as rust. - It is a reddish-brown solid at room temperature. - Iron(III) oxide is insoluble in water. - It is used in various applications, including pigments, polishing agents, and as a catalyst in chemical reactions.

2. Cr(OH)3: - Formula: Cr(OH)3 - Chromium(III) hydroxide is the chemical name for Cr(OH)3. - It consists of one chromium (Cr) atom and three hydroxide (OH) ions. - Chromium(III) hydroxide is a green solid. - It is insoluble in water. - Chromium(III) hydroxide is used in the production of pigments and as a precursor for other chromium compounds.

3. Na2SiO3: - Formula: Na2SiO3 - Sodium silicate is the chemical name for Na2SiO3. - It consists of two sodium (Na) atoms, one silicon (Si) atom, and three oxygen (O) atoms. - Sodium silicate is a white solid. - It is soluble in water. - Sodium silicate is used in various applications, including as a detergent, adhesive, and in the manufacturing of silica gel.

Please note that the information provided is based on the search results and may not cover all possible characteristics of the given formulas.