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Brrunno [24]
4 years ago
13

Discuss the uses and economic value of the mineral. Estimate south africa's global reserves and production of thise mineral

Chemistry
1 answer:
horrorfan [7]4 years ago
6 0
Creates one million jobs (500 000 direct and 500 000 indirect).
Accounts for about 18% of GDP (8.6% direct, 10% indirect and induced).
Is a critical earner of foreign exchange at more than 50%.Accounts for 20% of investment (12% direct).
Attracts significant foreign savings (R1.9-trillion or 43% of value of JSE).
Accounts for 13.2% of corporate tax receipts (R17-billion in 2010) and R6-billion in royalties.
Accounts for R441-billion in expenditures, R407-billion spent locally.
Accounts for R78-billion spent in wages and salaries.Accounts for 50% of volume of Transnet’s rail and ports.
Accounts for 94% of electricity generation via coal power plants.
Takes 15% of electricity demand.
About 37% of the country’s liquid fuels via coal.<span>

</span>With South Africa’s economy built on gold and diamond mining, the sector is an important foreign exchange earner, with gold accounting for more than one-third of exports. In 2009, the country’s diamond industry was the fourth largest in the world. South Africa is also a major producer of coal, manganese and chrome.
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The ________<br>have no charge but<br>weigh a lot compared to the________.​
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Answer:

The neutrons have no charge

Explanation:

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7 0
3 years ago
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If a gas has a volume of 1000 ML at a temperature of 23°C and a pressure of 100 mmhg, what is it’s volume under standard conditi
Colt1911 [192]

Answer:

119.7 mL.

Explanation:

  • From the general law of ideal gases:

<em>PV = nRT.</em>

where, P is the pressure of the gas.

V is the volume of the container.

n is the no. of moles of the gas.

R is the general gas constant.

T is the temperature of the gas (K).

  • For the same no. of moles of the gas at two different (P, V, and T):

<em>P₁V₁/T₁ = P₂V₂/T₂.</em>

  • P₁ = 100.0 mmHg, V₁ = 1000.0 mL, T₁ = 23°C + 273 = 296 K.
  • P₂ = 1.0 atm = 760.0 mmHg (standard P), V₂ = ??? mL, T₂ = 0.0°C + 273 = 273.0 K (standard T).

<em>∴ V₂ = (P₁V₁T₂)/(T₁P₂) </em>= (100.0 mmHg)(1000.0 mL)(273.0 K)/(296 K)(760.0 mmHg) =  121.4 <em>mL.</em>

8 0
4 years ago
Please answer 7-9 i am using alot of my points for this
Montano1993 [528]

Answer:

7... simalair: made of more than 2 things    DIffernt: elemants are made of atoms.

Explanation:

4 0
3 years ago
six different aqueous solutions are represented in the beakers below, and there total volumes are noted. (a) which solution has
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The molarity of the solutions are as follows:

  • solution B has the highest molarity
  • solutions A, D and F have the same molarity
  • solutions A and C are mixed together have a lower molarity than B
  • solution F and D will have the same molarity
  • Volume of water required to be evaporated is 8.3 mL

<h3>What is molarity of a solution?</h3>

The molarity of a solution is the amount in moles of a substance present in a given volume of solution.

From the image of the solution given:

  • solution B has the highest molarity
  • solutions A, D and F have the same molarity
  • when solutions A and C are mixed, the resulting solution have a lower molarity than B
  • solution F and D will have the same molarity after 75 mL and 50 mL of water are added to each respectively
  • the molarity of B is 12/50 = 4/16.7. Volume of water required to be evaporated = 25 - 16.7 = 8.3 mL

Therefore, the molarity of the solutions depends on the moles of substance present per given volume of solution.

Learn more about molarity at: brainly.com/question/24305514

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6 0
2 years ago
When forming positive ions transition metals comply gain electrons??
AlekseyPX

Answer:

elements on the left-hand side of the periodic table such as sodium and magnesium prefer to lose electrons to form a cation because this requires less energy to obtain a stable octet, and vice-versa for the right-hand side of the periodic table e.g. fluorine. However, using this reasoning I am not sure why all transition metals tend to lose electrons rather than gain them.

7 0
3 years ago
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