Explain sparklers enclose powdered iron

Assignment Help Chemistry
Reference no: EM13682942

Sparklers enclose powdered iron. Explain why do sparklers burn more rapidly that a piece of iron wire? Select all that apply.

The larger surface area of the iron powder raises the rate of reaction.
Converting the iron to a powder makes it a catalyst
Converting the iron to a powder makes it an ionic compound which reacts more rapidly
Smaller particles contain a lower energy of activation than larger particles
Larger particles react more quickly than small particles.

Reference no: EM13682942

Questions Cloud

Compare and contrast bureaus and business firms : Political corruption is epidemic in Russia today. What effect does this have on the Russian economy?
Define what is the osmotic pressure of resulting solution : Explain a compound has a molar mass of 598 g/mol. Define if 35.8 mg of the compound is dissolved in adequate water to make 175mL of solution at 25 0C, define what is the osmotic pressure of the resulting solution
Define what is diethyl ether vapor pressure : Diethyl ether comprise a vapor pressure of 401 mmHg (torr) at 180C as well as its molar heat of evaporation is 26.0 kJ/mol define what is its vapor pressure at 32.00C R = 8.314J/K.mol
Explain what is diethyl ether vapor pressure : Diethyl ether have a vapor pressure of 401 mmHg torr at 18 0C and its molar heat of evaporation is 26.0 kJ/mol explain what is its vapor pressure at 32.00C ( R = 8.314J/K.mol)
Explain sparklers enclose powdered iron : Sparklers enclose powdered iron. Explain why do sparklers burn more rapidly that a piece of iron wire? Select all that apply.
Explain at what kelvin temperature will the vapor pressure : A certain substance has a heat of vaporization of 65.89kJ/mol. Explain at what Kelvin temperature will the vapor pressure be at 5.50 times higher than it was at 297k
Compute the number of moles of no2(g) : At a certain temperature the equilibrium constant for the subsequent chemical equation is 2.80. At this temperature, compute the number of moles of NO2(g) that must be added to 2.52 mol of SO2(g) in order to form 1.20 mol of SO3(g) at equilibrium.
Explain what volume of base is needed to reach : The flask shown here contains 0.450 g of acid as well as a few drops of phenolphthalein indicator dissolved in water. The buret contains 0.200 M NaOH. Explain what volume of base is needed to reach the end point of the titration. Presuming the aci..
Explain the ionic and net ionic equations : Offer the complete balanced reaction for HNO3(aq)+Ba(OH)2(aq) as well as the ionic and net ionic equations

Reviews

Write a Review

Chemistry Questions & Answers

  Explain how much heat is transferred

Methan can be considered an ideal gas at 250 degree and o.8 MPa. One kg of Methane in a piston/cylinder device undergoes a reversible isothermal expansion to 0.3 MPa. Explain how much heat is transferred

  How many grams of dry nh4cl need to be added

How many grams of dry NH4Cl need to be added to 2.00 of a 0.100 M solution of ammonia, , to prepare a buffer solution that has a of 8.64? Ka for ammonia is 1.8*10^-5.

  Write a balanced equation for the combustion of heptane

Write a balanced equation for the combustion of heptane, C7H16, in oxygen, , forming the products carbon dioxide, and water, H2O. How many grams of water will be produced by the complete reaction of 7.88 grams of heptane?

  Explain the substance with the lesser entropy

In which pair of substances below does the substance with the greater entropy not follow the substance with the lesser entropy

  In the manufacturing of computer chips cylinders of silicon

in the manufacturing of computer chips cylinders of silicon arecut into thin wafers that are 3.00 inches in diameter

  How many grams of zinc sulfide could be produced

Zinc metal reacts with yellow crystals of sulfur in a fiery reaction to produce a white powder of zinc sulfide. A chemist determines that 65.4 g of zinc reacts with 32.1 g of sulfur. How many grams of zinc sulfide could be produced from 12.0 g of ..

  Explain the two chair conformations of isopropylcyclohexane

The standard free-energy difference between the two chair conformations of isopropylcyclohexane is 9.2 kJ mol-1 (2.2 kcal mol-1). What is the ratio of concentrations of the two conformations (axial and equatorial) at 25 °C

  Predict the products from the reaction of the following

predict the products from the reaction of the following compounds with excess h2cro4 in the presence of sulfuric acida.

  Explain what is the charge above and below physiological ph

what is the charge of the carboxyl group in an amino acid at physiological pH. Please explain the charge. Also what is the charge above and below physiological pH

  Explain magnesium metal burns in oxygen

Write a balanced chemical equation when Magnesium metal burns in oxygen to form magnesium oxide, MgO

  Explain the three main components of dry air

The three main components of dry air and the percentage of each are Nitrogen(78.08%), oxygen (20.95%), and argon (0.93) A) calculate the partial pressure of each gas in a sample of dry air at 760mmHg

  The solubility of n2 in water is 22 x 00001 g in 100 g of

the solubility of n2 in water is 2.2 x 0.0001 g in 100 g of h2o at 20 celcius when the pressure of nitrogen over the

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