Question

Mg MgO MgSO4 Mg(OH)2

Answer 1

SiO2 + 4Mg =(t)= 2MgO + Mg2Si
MgO + H2SO4 = MgSO4 + H2O
MgSO4 + 2NaOH = Mg(OH)2↓ + Na2SO4 
Дополнительно: Mg(OH)2↓ белый аморфный осадок

Answer 2

2Mg+O2=2MgO
MgO+H2SO4=MgSO4+H2O
MgSO4+2NaOH=Mg(OH)2+Na2SO4
Mg(OH)2+HCl=MgCl+H2O

Answer 3

Mg, MgO, MgSO4, and Mg(OH)2 are all chemical compounds that involve the element magnesium (Mg). Let's discuss each compound in more detail:

Magnesium (Mg): Magnesium is a chemical element with the atomic number 12 and the symbol Mg. It is a shiny gray metal that is relatively lightweight and has a high strength-to-weight ratio. Magnesium is an essential element for many biological processes and is commonly found in minerals such as dolomite and magnesite. It is also widely used in various industries, including aerospace, automotive, and construction.

Magnesium Oxide (MgO): Magnesium oxide, also known as magnesia, is a compound composed of one magnesium ion (Mg^2+) and one oxygen ion (O^2-). It is a white solid with a high melting point and is commonly used in the production of refractory materials, as a component in cement, and as a dietary supplement.

Magnesium Sulfate (MgSO4): Magnesium sulfate, also known as Epsom salt, is a compound composed of one magnesium ion (Mg^2+) and one sulfate ion (SO4^2-). It is a crystalline solid that is highly soluble in water. Magnesium sulfate is widely used in medicine as a laxative, in agriculture as a fertilizer, and in various industrial applications.

Magnesium Hydroxide (Mg(OH)2): Magnesium hydroxide is a compound composed of one magnesium ion (Mg^2+) and two hydroxide ions (OH^-). It is a white solid that is sparingly soluble in water. Magnesium hydroxide is commonly used as an antacid to neutralize excess stomach acid and as a component in laxatives.

Each of these compounds has its own unique properties and uses. It's important to note that this is just a brief overview, and there is much more to learn about each compound. If you have any specific questions or would like more information on any of these compounds, feel free to ask!