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Sphinxa [80]
3 years ago
9

Which of the following is not a part of Earth’s system? a. hydrosphere b. geosphere c. biosphere d. chronosphere

Chemistry
2 answers:
jenyasd209 [6]3 years ago
7 0

Answer : The correct option is (d).

Explanation:

Hydrosphere : It is portion or surface covered by water or fluid on the Earth. Such as : oceans, lakes , lakes, clouds etc.

Geosphere: It is a solid portion of the Earth system which includes substance found on interior side of the Earth like: rocks,minerals landforms etc. Basically it provides shape to outermost layer of the earth.

Biosphere: Regions of surface, atmosphere and hydrosphere of the Earth occupied by living organisms is known as biosphere.

Chronospere: It is mass teleportation device which can move object through space and time.

So, from all the above options chronosphere is not a part of the earth system. Hence correct option is (d).

Citrus2011 [14]3 years ago
5 0
It is D.chronoshpere 
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Answer: c. greater than 7.00

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3 0
3 years ago
Given the reaction: 4A1 + 302 - 2A1,O, How many grams of Al will be
dlinn [17]

Answer:

The answer to your question is 27 g of Al

Explanation:

Data

mass of Al = ?

moles of Al₂O₃ = 0.5

The correct formula for the product is Al₂O₃

Balanced chemical reaction

               4Al + 3O₂   ⇒   2Al₂O₃

Process

1.- Calculate the molar mass of the product

Al₂O₃ = (27 x 2) + (16 x 3)

         = 54 + 48

         = 102 g

2.- Convert the moles of Al₂O₃ to grams

               102 g ---------------- 1 mol

                 x       ----------------  0.5 moles

                 x = (0.5 x 102) / 1

                 x = 51 g of Al₂O₃

3.- Use proportions to calculate the mass of Al

                4(27) g of Al --------------- 2(102) g of Al₂O₃

                     x               --------------- 51 g

                        x = (51 x 4(27)) / 2(102)

                        x = 5508 / 204

                        x = 27 g of Al

4 0
3 years ago
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