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What is the standard heat of reaction for SiO2 s 4HF g --- SiF4 g 2H2O l?
Wiki User
∙ 13y ago
heat of reaction is -194KJ/mol
Wiki User
∙ 13y ago
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What is the reaction of H2SiO4?
Silicic acid is H4SiO4; maybe that's what you want? That's SiO2 + 2H2O -> H4SiO4.
What happened when silica mixed with acids?
Usually nothing happens as silica is a very nonreactive substance. However, hydrofluoric acid will react with glass in the following manner. 4HF + SiO2 --> SiF4 + 2H2O The SiF4 escapes as a gas.
What is a dissolution reaction?
Dissolution is the process of dissolving a solute in a solvent. It does not involve any chemical change. �Some elements are more mobile than others � �Most commonly promoted by acid � �KAlSi3O8 + H2O > Al2Si2O5(OH)4 + K+ + H4SiO4
What is the balanced equation for Silicon tetrachloride and water?
Silicon does not have a balanced equation because it is just an element. It's symbol is Si but a chemical equation cannot take place unless you hae more than one element involved.A. O B. g C. s D. Ca
What is chemical formula of quartz?
Silica (silicon dioxide, SiO2)
What is the reaction of H2SiO4?
Silicic acid is H4SiO4; maybe that's what you want? That's SiO2 + 2H2O -> H4SiO4.
How do you balance Si2H3 plus O2-- SiO2 plus H2O?
equals SIF42H2O
What happened when silica mixed with acids?
Usually nothing happens as silica is a very nonreactive substance. However, hydrofluoric acid will react with glass in the following manner. 4HF + SiO2 --> SiF4 + 2H2O The SiF4 escapes as a gas.
What is an example of Formation of quartz-rich vugs?
1) SiO2 + 2H2O à H4SiO4 (aq) • 2) Fluid flow 3) H4SiO4à 2H2O + SiO2
What is a dissolution reaction?
Dissolution is the process of dissolving a solute in a solvent. It does not involve any chemical change. �Some elements are more mobile than others � �Most commonly promoted by acid � �KAlSi3O8 + H2O > Al2Si2O5(OH)4 + K+ + H4SiO4
What is the balanced equation for Silicon tetrachloride and water?
Silicon does not have a balanced equation because it is just an element. It's symbol is Si but a chemical equation cannot take place unless you hae more than one element involved.A. O B. g C. s D. Ca
What is kyanite and how is it formed?
temperatures above 1100 °C kyanite decomposes into mullite and vitreous silica via the following reaction: 3(Al2O3·SiO2) → 3Al2O3·2SiO2 + SiO2
What is chemical formula of quartz?
Silica (silicon dioxide, SiO2)
Do compounds react with acid?
It depends on the specific compound and acid. Acids usually react with compounds called bases such as potassium hydroxide, calcium carbonate, and sodium hypochlorite, though it can depend on how strong the acid and base are. Other reactions may occur that have to do with other chemical properties than acidity. For example acetic acid reacts with thionyl chloride to produce acetyl chloride, hydrogen chloride, and sulfur dioxide. CH3CO2H + SOCl2 --> CH3COCl + HCl + SO2 And hydrofluoric acid can react with silicon dioxide (the main component of glass) to produce silicon tetrafluoride and water. 4HF + SiO2 --> SiF4 + 2H2O
How many moles are in 147 grams of SiO2?
147 (g) SiO2 / 60.1 (g/mol) = 2.446 mol SiO2(the molar mass of SiO2 is 60.1 g/mol)
What is the formula for silicate?
Sand is a mixture of many different compounds, but the main component is Silicon dioxide, SiO2 .
Balanced chemical equation for automobile airbags?
The reactions that occur inside a standard automobile airbag; Reaction #1 : NaN3 (s) --> Na (s) + N2 (g) Reaction #2 : Na (s) + KNO3 (s) --> K2O (s) + Na2O (s) + N2 (g) Reaction #3: K2O (s) + Na2O (s) + SiO2 (s) --> Alkaline Silicate Glass The balanced reactions that occur inside a standard automobile airbag; Reaction #1 : 2 NaN3 (s) --> 2 Na (s) + 3 N2 (g) Reaction #2 : 10 Na (s) + 2 KNO3 (s) --> K2O (s) + 5 Na2O (s) + N2 (g)
