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PIT_PIT [208]
3 years ago
9

Provide one example of how life on Earth would not be possible without water based on its characteristics.

Chemistry
1 answer:
snow_lady [41]3 years ago
6 0

Answer: ice is less dense than liquid water. If ice was more dense, Earth would freeze.

Explanation: There are many reasons why life on Earth depends on the characteristics of water. One could discuss hydrogen bonds and its role as a solvent, but the unusual property of water is is the change in density with change in temperature. Water is densest at 4 degC, which is why ice floats - it is less dense than cold water (it melts quickly in warm water, so density isn’t impotant at higher temperatures). Most liquids are less dense than the solid, frozen form. If this was the case with water, any ice that formed would sink, and sease would freeze from the bottom up. Furthermore, the lowest layers would be insulated and would not all melt in summer. Thus over time, the seas would become a thin layer of liquid water at best, over solid ice. Life could not develop without liquid seas. In addition, ice is reflective, reducing the amount of sunlight absorbed, further reducing temperatures. Without ocean circulation, polar areas would be even colder, and there would be no rain.

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What is the molecular geometry if you have 3 single bonds and 1 lone pair around the central atom?
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Answer:

There are 2 double bond units and 1 lone pair, which will try to get as far apart as possible - taking up a trigonal planar arrangement. Because the lone pair isn't counted when you describe the shape, SO2 is described as bent or V-shaped.

Explanation:

There are 2 double bond units and 1 lone pair, which will try to get as far apart as possible - taking up a trigonal planar arrangement. Because the lone pair isn't counted when you describe the shape, SO2 is described as bent or V-shaped.

7 0
3 years ago
How do I balance chemical equations ?<br>​
Maru [420]

Answer & explanation:

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8 0
3 years ago
Differentiate between short period and long period in modern periodic table​
AfilCa [17]
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8 0
3 years ago
Read 2 more answers
What is the molar mass of 81.50 g of gas
garik1379 [7]

The molar mass  of gas = 238.29 g/mol

<h3>Further explanation</h3>

Given

mass = 81.5 g

P=1.75 atm

V=4.92 L

T=307 K

Required

molar mass

Solution

The gas equation can be written  

\large{\boxed{\bold{PV=nRT}}

\tt n=\dfrac{mass}{molar~mass}

So the equation becomes :

\tt Molar~mass=\dfrac{mRT}{PV}

Input the value :

\tt M=\dfrac{81.5\times 0.082\times 307}{1.75\times 4.92}\\\\M=238.29~g/mol

5 0
3 years ago
Read 2 more answers
what is the total ionic and net ionic equation for for the reaction between between mercury (II) nitrate and iron (III) chloride
MArishka [77]

Answer:

Hg+2 + 2Cl- -> HgCl2






HOPE THIS HELPS HAVE A GREAT DAY/NIGHT!!~

Explanation:

7 0
2 years ago
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