User Account

All Pages

During an experiment a metal and an excess of fluorine gas

Assignment Help Chemistry
Reference no: EM13345117

During an experiment, a metal and an excess of fluorine gas were placed into a combustion chamber at a temperature of 1800°C. The temperature in the sealed chamber continued to rise to 2100°C. After the reaction stopped, a brittle white substance, which dissolved in water, was extracted from the chamber. What can be concluded from this evidence?

  1. exothermic formation reaction
  2. endothermic decomposition reaction
  3. exothermic decomposition reaction
  4. endothermic formation reaction

Reference no: EM13345117

Questions Cloud

A solid object of aisi 302 steel at a temperature of 850c : a solid object of aisi 302 steel at a temperature of 850?c is quenched in mineral oil at a temperature of 25?c. the oil
When 24 copper pennies are submerged in water the pennies : when 24 copper pennies are submerged in water the pennies displace 8.26 cm3 of water. if the combined mass of the
What mass of solid sodium formate of mw 6801 must be added : what mass of solid sodium formate of mw 68.01 must be added to 140 ml of 0.57 moll formic acid hcooh to make a buffer
If a raindrop weighs 63 mg on average and 51 105 raindrops : if a raindrop weighs 63 mg on average and 5.1 105 raindrops fall on a lawn every minute what mass in kg of rain falls
During an experiment a metal and an excess of fluorine gas : during an experiment a metal and an excess of fluorine gas were placed into a combustion chamber at a temperature of
You add 73 iron to 2510 of water and observe that the : you add 7.3 iron to 25.10 of water and observe that the volume of iron and water together is 26.03. calculate the
You have 500 ml of a buffer solution containing 2 m : you have 500 ml of a buffer solution containing .2 m ch3cooh and .3 m ch3coona. what will the ph of this solution be
A very long cylinder of linear dielectric material is : a very long cylinder of linear dielectric material is placed in an otherwise uniform electric field eo. find the
If the barometric pressure is 784 torr and the experiment : if the barometric pressure is 784 torr and the experiment is carried out at 25 oc what is the pressure of the gas

Reviews

Write a Review

Chemistry Questions & Answers

  Explain which variable she should change which variable she

keisha wants to measure how the temperature of a gas affects its volume. explain which variable she should change which

  State express the original concentration of cscl solution

After all the water is evaporated from 10.0 mL of a CsCl solution, 3.75 g of CsCl remains. Express the original concentration of CsCl solution in each of the following units.

  Explain what are the equillibrum pressure of pco

The value of Kc for this reaction is 5.0 at 600 K. What are the equillibrum partial pressures of the three gases if a reaction vassel initially contains a mixture of the reactants in which Pco=Pcl2=0.215 atm and Pcocl2= 0.000 atm?

  Explain when one mole of solid naoh is dissolved

When one mole of solid NaOH is dissolved in 1L of solution, 44.5kj of heat are released. How much heat is released when 1.00g of NaOH is dissovled in 100.0mL of water?

  Explain at what rate is the na2o2 consumed in grams per hour

If the CO2 and O2 in the above reaction are measured at the same temperature and pressure, 1. How many milliliters of O2 are produced per minute. 2. At what rate is the Na2O2 consumed, in grams per hour

  The other uses an incorrect value 16 and determines the

two engineers are calculating the molecular weight of a gas mixture containing oxygen and other gases. one of them uses

  Explain the temperature of a system with a negative change

The reaction will be spontaneous at high temperatures because increasing the temperature of a system with a negative change in S eventually results in a positive change in G.

  Define amount of arsenic trichloride and the rest inerts

A 1.784 gram sample containing an unknown amount of arsenic trichloride and the rest inerts was dissolved into a NaHCO3 and HCl aqueous solution.

  Explain 2-methycyclohexanol under acidic conditions

What is the product of the reaction of 2-methycyclohexanol under acidic conditions? What other elimination product(s) might be produced?

  An experiment shows that a 247ml gas sample has a mass of

an experiment shows that a 247ml gas sample has a mass of 0.432 gas at a pressure of 752 mmhg and a temperature of 28c.

  Compute the molar mass of the element

Calculate the molar mass (g/mol) of the element to three significant figures.

  Find out the molecular formula

find out the molecular formula and empirical of this compound and determined to contain 4.36 grams of  phosphorus and 5.64 grams of oxygen

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!

Submit Assignment

Academics

Major Subjects

Majors

Get In Touch

whatsapp: +1-415-670-9521

Phone: +1-415-670-9521

Email: [email protected]

TERMS & POLICIES

HELP & SUPPORT

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