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vladimir1956 [14]
3 years ago
10

Someone please help will mark as brainliest

Chemistry
1 answer:
sveticcg [70]3 years ago
7 0
I would think 38n uugghhgffryhn
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Help, I need to convert 3.16 μm to inches!
irina1246 [14]
0.00011811023622 <span>i</span><span>nches</span>
7 0
3 years ago
Antarctica, almost completely covered in ice, has an area
Marysya12 [62]

<u>Answer:</u> The mass of ice is 2.39\times 10^{22}g

<u>Explanation:</u>

We are given:

Area of Antarctica = 5,500,000mi^2=5,500,000\times 2.59\times 10^{10}=142.45\times 10^{15}cm^2      (Conversion factor:  1mi^2=2.59\times 10^{10}cm^2  )

Height of Antarctica with ice = 7500 ft.

Height of Antarctica without ice = 1500 ft.

Height of ice = 7500 - 1500 = 6000 ft = 182.88\times 10^3cm     (Conversion factor:  1 ft = 30.48 cm)

To calculate mass of ice, we use the equation:

\text{Density of a substance}=\frac{\text{Mass of a substance}}{\text{Volume of a substance}}

We are given:

Density of ice = 0.917g/cm^3

Volume of ice = Area × Height of ice = 142.45\times 10^{15}cm^2\times 182.88\times 10^3cm=26051.26\times 10^{18}cm^3

Putting values in above equation, we get:

0.917g/cm^3=\frac{\text{Mass of ice}}{26051.26\times 10^{18}cm^3}\\\\\text{Mass of ice}=(0.917g/cm^3\times 26051.26\times 10^{18}cm^3=2.39\times 10^{22}g

Hence, the mass of ice is 2.39\times 10^{22}g

5 0
3 years ago
I need help yall ill mark brainliest :)
garri49 [273]

Answer:

How does non-human life in an urban ecosystem differ from that in an undeveloped forest ecosystem?

Explanation:

In forest eco system the people are uncivilized and not so much educated. And in urban eco system people are intelligent as well as educated this is the main reason. In an urban ecosystem, the only non-human life that live there are the ones that are able to survive under the conditions. However, in undeveloped forest ecosystems, there’s barely any pollution. Therefore, a bigger variety of non-human life is able to live here.

Mark brainliest if you can please :)

3 0
2 years ago
The periodic table includes all of the known elements in the world. how are elements arranged on the periodic table?
svetlana [45]
The elements in a periodic table are arranged in the increasing order of their atomic number. 
3 0
3 years ago
Read 2 more answers
Outline in which direction the equilibrium 2 points
Dennis_Churaev [7]

Explanation:

  Reaction equation:

             CO + 2H₂  →  CH₃OH

All the species are in gaseous state and the equation is balanced.

 Change in pressure only affects equilibrium involving a gas or gases.

Based on Le Chatelier's principle, an increase in pressure will shift the position of equilibrium to the side having smaller volume or number of moles and vice versa.

          CO + 2H₂  →  CH₃OH

 3moles of gases     1 mole of gas

  An increase in pressure favors the forward reaction. A decrease in pressure will favor the backward step.

7 0
2 years ago
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