Question

Fe O, Al O, Ti O, Cr O Ag O

Answer 1

Насколько я понял из всего этого, нужно расставить индексы:

FeO ( если железо проявляет вторую валентность ) ,

Fe2O3 ( если железо проявляет третью валентность ) ;

Al2O3 ;

TiO ( если титан проявляет вторую валентность ) ,

Ti2O3 ( проявляет третью валентность ) ,

TiO2 ( проявляет четвёртую валентность ) ;

CrO ( если хром проявляет вторую валентность ) ,

Cr2O3 ( проявляет третью ) ,

CrO3 ( проявляет шестую валентность ) ;

Ag2O

Answer 2

It seems like you've provided a list of chemical compounds with the formula "M O," where "M" represents a metal element, and "O" represents oxygen. These compounds consist of a metal element bonded to oxygen atoms. Here's what each compound represents:

1. FeO - Iron(II) oxide: This compound consists of iron (Fe) and oxygen (O) atoms. It's commonly known as ferrous oxide or iron(II) oxide.

2. Al2O3 - Aluminum oxide: This compound consists of aluminum (Al) and oxygen (O) atoms. It's also known as alumina and is commonly found in the form of the mineral corundum.

3. TiO2 - Titanium dioxide: This compound consists of titanium (Ti) and oxygen (O) atoms. It's a white, powdery substance and is commonly used as a pigment in paints, sunscreens, and food coloring.

4. Cr2O3 - Chromium(III) oxide: This compound consists of chromium (Cr) and oxygen (O) atoms. It's commonly known as chromia and is used as a green pigment in various applications.

5. Ag2O - Silver(I) oxide: This compound consists of silver (Ag) and oxygen (O) atoms. It's a dark brown or black solid and is sometimes used in chemical reactions.

Each of these compounds has distinct properties and uses in various industries and applications. If you have specific questions about any of these compounds or need more information about their properties or uses, please feel free to ask.