State a balanced equation for the reaction

Assignment Help Chemistry
Reference no: EM13562211

Sand consist mainly of silicon dioxide. When sand is heated with an excess of coke (carbon), pure silicon and carbon monoxide are produces.

a. Write a balanced equation for the reaction

b. How many moles of silicon dioxide are required to form 12.72 g of silicon?

c. How many grams of carbon monoxide are formed when 44.99 g of silicon is produced?

Reference no: EM13562211

Questions Cloud

Evaluate the molar excess of the acetic anhydride : 5 ml of acetic anhydride and 5 drops of phosphoric acid is added to 2 g of salicylic acid. Calculate the molar excess of the acetic anhydride (density = 1.08 g/ml)
Calculate the speed of the car at the bottom of drive way : A 2.1*10^3-kg car starts from rest atthe top of a5.0-m-long driveway that is sloped at 20 degrees with thehorizontal. find the speed of the car at the bottom of the drive way
Explain combustion and decomposition : For the following combination of reactants, enter the formulae of the products in the space provided and give their states. Separate multiple products with a comma
Define oxygen masks for producing o2 in emergency situations : Oxygen masks for producing O2 in emergency situations contain potassium superoxide, KP2. It reacts with CO2 AND H2O in exhaled air to produce oxygen
State a balanced equation for the reaction : Sand consist mainly of silicon dioxide. When sand is heated with an excess of coke (carbon), pure silicon and carbon monoxide are produces. Write a balanced equation for the reaction
Estimate how fast does the air flowing the duct : A 17 cm radius air duct is used to replenish the air of a room9.2 m x 5.0 m x 4.5 m every ten minutes. How fast does the air flowing the duct
Explain what is the approximate h-ge-h bond angle : What atomic or hybrid orbitals make up the sigma bond between Ge and H in germanium hydride, GeH4. What is the approximate H-Ge-H bond angle
Define large jump in ionization energy values : Which element will display an unusually large jump in ionization energy values between I3 and I4, its third and forth ionization energies. and why
What is the final temperature of iron and water : 200 grams of iron at 100 degrees C. is dropped into aninsulated beaker containing 500 grams of water at 20 degrees C. What is the final temperature of iron and water

Reviews

Write a Review

Chemistry Questions & Answers

  How to calculate ca2+ after the treatment

When blood is donated, sodium oxalate solution is used to precipitate Ca2+, which triggers clotting. A 104 mL sample of blood contains 9.7 x 10^-5 g Ca2+/mL. A technologist treats the sample with 100 ml of .1550 M Na2C2O4. Calculate [Ca2+] after t..

  Explain a compound of chromium and oxygen

A compound of chromium and oxygen contains 18.9 g of the nonmetal and 41.1 g of the metal. How many grams of chromium are in 1.22 kg of the compound

  Staet how much limestone is needed to completely neutralize

How much limestone (CaCO3) in kg would be required to completely neutralize a 5.2 x 10^9 L lake containing 5.0 x 10^-3 g of H2SO4 per liter?

  Define what is the molar solubility of pbi2 in water

What is the molar solubility of PbI2 in water. For PbI2, Ksp=7.9x10-9. You may assume that the ions do not form ion pairs in solution. Give your answer in moles per litre, accurate to two significant figures.

  Explain how much heat was added to the sample

A 22.9-g sample of liquid hexane (specific heat = 2.27 J g-1 oC-1), initially at 11.7oC, is heated until its final temperature is 35.7oC. How much heat was added to the sample

  Explain the identity of the compound

Inspection of an IR spectrum rarely reveals the identity of the compound. However, one can often identify what?

  Explain the overall reaction in the lead storage battery

The overall reaction in the lead storage battery used in your car is Pb (s) + PbO2 (s) + 2 H+ (aq) + 2 HSO4 - (aq) ? 2 PbSO4 (s) + 2 H2O (l) a. For the overall cell reaction

  Explain the total mass of both components in a decaborane

The best design for rockets is one in which both fuel materials run out at the same time to minimize excess mass. If the total mass of both components in a decaborane/oxygen rocket must be 3.011E+6g, what mass of liquid oxygen should be used

  Define the ph of a .040 m hcl solution

compare the pH of a .040 M HCl solution with that of a .040 M H2SO4 solution. (hint: H2SO4 is a strong acid; Ka for HSO4- = 1.3 X 10^-2)

  Explain what is the ph initially before any titrant is added

20.0 mL of a 0.10M weak acid (Ka= 1.56X10^-6) is titrated with a 0.20M strong base. a. What is the pH initially, before any titrant is added

  Define standard state is the physical state

Standard state is the physical state in which a substance is stable at 1 atm of pressure and a specified temperature

  Define copper(i) oxide would actually be produced

If you start with 5.00g Cu(s) what would the theoretical yield of copper (I) oxide. If the reaction isn't very efficient and only has a 26% yield, how many grams of copper(I) oxide would actually be produced

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd