State mixture heterogeneous and mixture homogenous

Assignment Help Chemistry
Reference no: EM13184061

A sample is composed completely of gold and is absolutely free of impurities. Which term or terms could be used to describe this sample of gold? Check all that apply. mixture heterogeneous mixture homogenous mixture solution pure chemical substance compound element

Reference no: EM13184061

Questions Cloud

Explain what is the atomic mass of lanthanum : The element lanthanum has an atomic weight of 139 and consists of two stable isotopes lanthanum-138 and lanthanum-139.
Determine the net after-tax cash flows : An auto-part manufacturing company is considering the purchase of an industrial robot to do spot welding, which is currently done by skilled labor. The initial coast of the robot is $250,000, and the annual labor savings are projected to be $140,0..
How many grams of sodium bicarbonate and sodium carbonate : How many grams of sodium bicarbonate and sodium carbonate, respectively, are needed to make 3 liters of 0.075 M buffer,
Determine the companys annual average tax rates : Scottsdale Print Shop expects to have an annual taxable income of $300,000 from its regular business over the next two years. The company is also considering the proposed acquisition of a new printing machine to expand current business to offer in..
State mixture heterogeneous and mixture homogenous : Which term or terms could be used to describe this sample of gold? Check all that apply. mixture heterogeneous mixture homogenous mixture solution pure chemical substance compound element
Dominant position in world affairs-during the 19th century : During the 19th century, Western society assumed a dominant position in world affairs. How and why did such a change happen? How did non-Western societies respond to the West's new found power?
What is the money multiplier : If the reserve ratio is lowered to 8%, what is the money multiplier and what is the maximum amount of money created by the same $5000 deposit, In a t-account show the bank balances for a $5000 deposit with a 10% reserve ratio. What is the money mu..
Legislation in the english legal system : Critically discuss the effectiveness of parliamentary and judicial controls over delegated legislation in the English legal system.
State a sample of gasoline contains various hydrocarbons : A sample of gasoline contains various hydrocarbons, which comprise atoms of carbon, hydrogen, and oxygen. The hydrocarbons mix together uniformly to form gasoline.

Reviews

Write a Review

Chemistry Questions & Answers

  How many grams of solute will separate

if a saturated solution of NH4NO3 at 70 degrees Celsius was cooled to 10 degrees Celsius, how many grams of solute will separate if the quantity of the solvent is 98 grams?

  Compute the amount of energy required to heat

Which of the following constants is/are needed to calculate the amount of energy required to heat 30.5g of H2O(s) at -25.0 degreeC to H20(L) at 5.0 degreeC?

  State the black silver sulfide discoloration of silverware

The black silver sulfide discoloration of silverware can easily be removed by heating the silver article in a sodium carbonate solution in an aluminum pan.

  Which h atom transition responsible for photon emission

Determine which H atom transition (ninitial,nfinal) was responsible for the emission of a photon with a frequency of 6.91 x 1014 Hz.

  How much energy in joules would be absorbed

The Delta H for this reaction is 54.8 kJ. How much energy would be absorbed if 24.7 g of NH_4Cl reacts?

  What is the boiling point of a mixture composed

What is the boiling point of a mixture composed of 85 g HOCH2CH2OH (ethylene glycol) and 125 g H2O? The boiling point elevation constant for H2O is 0.512 °C/m.

  Why is the peroxide anion such a strong oxidizing agent

Why is the peroxide anion such a strong oxidizing agent and describe qualitatively how the conclusions of Bohr and Rydberg are essentially the same?

  Construct a reaction table for the process

Construct a reaction table for the process, and use it to calculate Kc at this temperature.

  Calculate the radius of iridium

Calculate the radius of iridium (Ir) atom given that Ir has FCC crystal structure, a density of 22.4 g/cm³ and atomic weight of 192.2 g/mol

  How many moles of the second reactant would be require

For the unbalanced equation Cl2 ++ KI = I2 + KCl - how many moles of the second reactant would be require to react exactly with the 0.275 mole of the first reactant

  What is a cyanide based compound used in synthesis

what is a cyanide based compound used in synthesis of methadone?

  Calculate the atomic mass of rubidium

Rubidium has two naturally occurring isotopes: Rb-85 with mass 84.9118 amu and a natural abundance of 72.17%, and Rb-87 with mass 86.9092 amu and a natural abundance of 27.83%.

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