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3 years ago

What is the layer of Earth's atmosphere that has the coldest temperature range?

Chemistry

1 answer:

babymother [125]3 years ago

3 0

The layer of Earth’s atmosphere that has the coldest temperature range is mesosphere

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The dumping of wastewater from this pipe is an example of what type of pollution?

Veseljchak [2.6K]

Answer:

dumping of wastewater is an example of water polution.

Explanation:

water polution is when an alienated foreign contaminent is put into a water source either intentionally or accidentally

3 0

3 years ago

Which is a fossil fuel? O A. Coal O B. Biomass O C. Geothermal O D. Nuclear

creativ13 [48]

Answer:

coal

Explanation:

fossil fuels are formed by natural process.

3 0

3 years ago

How many moles of silver are in 8.46E24 atoms of silver?

KonstantinChe [14]

Answer:

14.048 moles I believe.

Explanation:

(8.46 * 10^24) / ( 6.022 * 10^23) = 14.048

6 0

3 years ago

Please help me ASAP

MrRissso [65]

Answer:

<h2>answer will be D</h2>

change of state only 

8 0

3 years ago

If you have 16 g of manganese (II) nitrate tetrahydrate, how much water is required to prepare 0.16 M solution from this amount

Schach [20]

Answer: The amount of water required to prepare given amount of salt is 398.4 mL

Explanation:

To calculate the volume of solution, we use the equation used to calculate the molarity of solution:

$\text{Molarity of the solution}=\frac{\text{Mass of solute}\times 1000}{\text{Molar mass of solute}\times \text{Volume of solution (in mL)}}$

We are given:

Molarity of solution = 0.16 M

Given mass of manganese (II) nitrate tetrahydrate = 16 g

Molar mass of manganese (II) nitrate tetrahydrate = 251 g/mol

Putting values in above equation, we get:

$0.16M=\frac{16\times 1000}{251\times \text{Volume of solution}}\\\\\text{Volume of solution}=\frac{16\times 1000}{251\times 0.16}=398.4mL$

Volume of water = Volume of solution = 398.4 mL

Hence, the amount of water required to prepare given amount of salt is 398.4 mL

4 0

3 years ago