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Vsevolod [243]
3 years ago
8

Which of the following countries mines most of the world’s opals?

Geography
2 answers:
Alla [95]3 years ago
7 0

Answer:

I think it's Papua New Guinea

Explanation:

My apologies if I'm wrong

Julli [10]3 years ago
3 0

Answer:

south austraila

Explanation:

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In a laboratory 178.8 g of water is separated into hydrogen gas and oxygen gas. the hydrogen gas has a mass of 20.0 g what is th
Anni [7]
Below is the solution:
n equation showing conservation of mass of reactants and products: 
<span>2H2O --> 2H2 & O2 </span>

<span>what is the mass of the oxygen gas produced, from 178.8 g H2O , (using molar masses: </span>
<span>178.8 g H2O @ (1mol O2)(@ 32.00 g/mol) / (2molH2O)(18.02g/mol) = </span>
<span>your answer (4 sigfigs): 158.8 g O2 </span>

<span>178.8 g H2O ---> 20.0 H2 & 158.8 O2</span>
8 0
2 years ago
On which continent is the nile river located?
Lynna [10]
The answer to your question would be D africa
hope this helps :D
3 0
3 years ago
What is a process that accounts for the elevated topography of some fault-block mountains?
liubo4ka [24]

<u>Explanation:</u>

Fault-block mountains are formed by the movement of large crustal blocks when forces in the Earth's crust pull it apart. Some parts of the Earth are pushed upward and others collapse down.

Fault blocks are very large blocks of rock, sometimes hundreds of kilometers in extent, created by tectonic and localized stresses in the Earth's crust. Large areas of bedrock are broken up into blocks by faults.

The process is simple when forces in the Earth's crust pull it apart.

I hope you get the idea thanks.

7 0
3 years ago
What is the tallest freestanding structure in the Western Hemisphere?
kap26 [50]

The CN tower is the tallest freestanding structure in the Western Hemisphere.

4 0
3 years ago
Read 2 more answers
The distance between two towns on a map measures 4.8cm. If the scale of the map is 1:250000 what would the actual distance be?
Archy [21]

The actual distance will be 12 km.

<u>Explanation</u>:

The scale of the map is 1:250000

1 cm in the map represents 250000 cm.

250000cm=2500 m=2.5 km

the measurement in the map is 4.8 cm

since 1 cm represents 250000 cm or 2.5 km

The actual distance represented by 4.8 cm on the map = 4.8*250000 cm =1,200,000 cm=12000 m=12 km

4 0
2 years ago
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