Science/Mathamatics

posted by .

A typical copper ore in Canada contains about 2% of the metal. If the annual production of mined copper is about 700000 t, how much ore must be mined annually?


Money,time,


2% = 700000
THEREFORE 100% = ?

100/2 X 700000 = 35000000t

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Chemistry

    A certain mine produces 2.5 108 kg of copper from chalcopyrite (CuFeS2) each year. The ore contains only 0.80% Cu by mass. (a) If the density of the ore is 2.0 g/cm3, calculate the volume of ore removed each year. (b) Calculate the …
  2. CHEMISTRY

    im a little confuse on this problem. "in the production of copper from ore containing copper(II) sulfide, the ore is first roasted to change it to the oxide according to the following equation: 2CuS + 2O2 --> 2CuO + 2CO2 [i already …
  3. GLG 101

    I need help on this. Post a response to the following: Geologic events, such as volcanic activity, play an important role in forming many of our valuable resources, such as fossil fuel,lead, copper, and gold. For example 15.21 on p. …
  4. GLG 101

    I need help on this. Post a response to the following: Geologic events, such as volcanic activity, play an important role in forming many of our valuable resources, such as fossil fuel,lead, copper, and gold. For example 15.21 on p. …
  5. science

    bornite(Cu3FeS3)is copper ore used in the production of copper.when heated,the following reaction occurs.2CuFeS3(s)+7oxygen(g)=6Cu(s)+2FeO(s)+6SO2(g)..IF 3.88 metric tons of bornite is reacted with excess oxygen and the process has …
  6. Chemistry

    A copper ore consists of 6.32% chalcopyrite, CuFeS2(s). How many metric tons of ore must be processed to obtain one metric ton of copper?
  7. Chemistry

    A copper ore consists of 6.32% chalcopyrite, CuFeS2(s). How many grams of ore must be processed to obtain one gram of copper?
  8. Chemistry - Science (Dr. Bob222)

    A student wanted to determine the amount of copper in a sample of copper ore. The student dissolved a 2.500 ± 0.001 g piece of copper ore in about 75 mL of nitric acid; then, a complexing agent was added. The student transferred this …
  9. 7th grade science

    Energy & Environment Which of the following desribes an example of land reclamation?
  10. Science

    Which of the following describes an example of land reclamation?

More Similar Questions