Write down the chemical formulas of silicon dioxide and calcum chloride?
Answers
Answer: Silicon dioxide : SiO2
Calcium chloride: CaCl2
Calcium Chloride is an ionic compound and therefore we need to take into account ionic charges for each element. We'll need to balance the charges on each element by modifying the subscripts until the charges balance. When we do, we end up with CaCl2 as the formula for Calcium Chloride.
The simple trick to find the chemical formulae just write the symbols of the constituent elements in a line and write their valancies on their head.
Then, interchange thier valancies and write the obtained number below.
E.g. 2 1
Ca Cl
Ca1Cl2 ---> CaCl2
Answer:
Explanation:
Silicon dioxide, also known as silica, is an oxide of silicon with the chemical formula SiO2, most commonly found in nature as quartz and in various living organisms.[5][6] In many parts of the world, silica is the major constituent of sand. Silica is one of the most complex and most abundant families of materials, existing as a compound of several minerals and as synthetic product. Notable examples include fused quartz, fumed silica, silica gel, and aerogels. It is used in structural materials, microelectronics (as an electrical insulator), and as components in the food and pharmaceutical industries.
Inhaling finely divided crystalline silica is toxic and can lead to severe inflammation of the lung tissue, silicosis, bronchitis, lung cancer, and systemic autoimmune diseases, such as lupus and rheumatoid arthritis. Inhalation of amorphous silicon dioxide, in high doses, leads to non-permanent short-term inflammation, where all effects heal.
Calcium chloride is an inorganic compound, a salt with the chemical formula CaCl2. It is a white coloured crystalline solid at room temperature, and it is highly soluble in water. It can be created by neutralising hydrochloric acid with calcium hydroxide.
Calcium chloride is commonly encountered as a hydrated solid with generic formula CaCl2(H2O)x, where x = 0, 1, 2, 4, and 6. These compounds are mainly used for de-icing and dust control. Because the anhydrous salt is hygroscopic, it is used as a desiccant