Question

SiO2 - Si - Mg2Si - SiH4 - SiO2 - Na2SiO3 - H2SiO3 - SiO2

Answer 1

SiO2+Mg=si+mgo

Si+2mg=mg2si

Mg2si+hcl=sih4+mgcl2

Sih4+o2=sio2+2h2

Sio2+2naoh=na2sio3+h2o

Na2sio3+hcl=h2sio3+Nacl

H2sio3=sio2+h2o

Answer 2

The sequence you provided consists of various silicon compounds. Here's a breakdown of each compound:

1. SiO2: This is silicon dioxide, also known as silica. It is a common compound found in nature, such as in quartz and sand. SiO2 is used in various industrial applications, including glass manufacturing and as a filler in many products.

2. Si: This symbol represents silicon, a chemical element commonly found in the Earth's crust. Silicon is widely used in electronics and as a semiconductor material due to its properties.

3. Mg2Si: This compound is magnesium silicide. It is formed by the reaction between magnesium and silicon. Magnesium silicide is often used in the production of alloys, particularly those with improved high-temperature strength.

4. SiH4: This is silicon tetrahydride, also known as silane. It is a colorless, flammable gas consisting of silicon and four hydrogen atoms. Silane is commonly used in the production of silicon-based materials, such as silicon films for solar cells and semiconductors.

5. SiO2: Again, this represents silicon dioxide (silica), which was previously mentioned.

6. Na2SiO3: This compound is sodium silicate, also known as water glass. It is an inorganic salt formed by combining sodium oxide (Na2O) and silicon dioxide (SiO2). Sodium silicate has various industrial applications, such as in detergents, adhesives, and as a binder in foundry molds.

7. H2SiO3: This formula represents silicic acid. It is a weak acid derived from silicon dioxide (SiO2). Silicic acid is not stable in its pure form and is typically found in aqueous solutions or in the form of salts.

8. SiO2: Once again, this refers to silicon dioxide (silica).

Overall, the sequence you provided includes various compounds involving silicon and its oxides, as well as other elements such as magnesium and sodium.