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siniylev [52]
2 years ago
10

Describe how water contributes to the fitness of the environment to support life.

Chemistry
1 answer:
andrew11 [14]2 years ago
6 0

Water contributes to the fitness of the environment to support life by acting as a Solvent for molecules to interact Moderate Earth's climate.

Water contributes to the fitness of the environment to support life in several ways :

  • Life on Earth began in water and evolved there for 3 billion years before colonizing the land.
  • Even terrestrial organisms are tied to water.
  • Most cells are surrounded by water.
  • Cells are about 70–95% water.
  • Water is a reactant in many of the chemical reactions of life.
  • Water is the only common substance that exists in the natural world in all three physical states of matter: solid ice, liquid water, and water vapour.
  • Water stabilizes air temperatures by absorbing heat from warmer air and releasing heat to cooler air.
  • Water can absorb or release relatively large amounts of heat with only a slight change in its own temperature.
  • Water’s high heat of vaporization moderates climate.
  • Much of the sun’s heat absorbed by tropical oceans is used for evaporation of surface water.
  • Water is unusual because it is less dense as a solid than as a cold liquid.
  • Most materials contract as they solidify, but water expands.
  • At temperatures above 4°C, water behaves like other liquids, expanding as it warms and contracting as it cools.
  • Water begins to freeze when its molecules are no longer moving vigorously enough to break their hydrogen bonds.
  • When water reaches 0°C, water becomes locked into a crystalline lattice, with each water molecule bonded to a maximum of four partners.

Learn more about Water here : brainly.com/question/5060579

#SPJ4

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Draw the alkane formed when 4,5,5-trimethyl-1-hexyne is treated with two equivalents of hbr.
AveGali [126]
<h3>Answer:</h3>

             The Alkane formed is 5,5-dibromo-2,2,3-trimethylhexane. as shown below in attached scheme (Green Color).

<h3>Explanation:</h3>

                        Alkynes like Alkenes undergo <em>Electrophillic Addition Reactions</em>. The reaction given is a two step reaction. In step 1, the Alkyne adds first equivalent of HBr obeying <em>Markovnikov's rule</em> (i.e. Bromine will add to carbon containing less number of hydrogen atoms) and forms <em>2-bromo-4,5,5-trimethylhex-1-ene</em>. In step 2, the alkene formed in first step (2-bromo-4,5,5-trimethylhex-1-ene) undergoes addition reaction with the second equivalent of HBr via Markovnikov's rule to produce <em>5,5-dibromo-2,2,3-trimethylhexane</em>.

The scheme is attached below, Blue color is assigned to starting Alkyne, Red color is assigned to intermediate Alkene and Green color is assigned to product Alkane respectively.

3 0
3 years ago
Read 2 more answers
You would be most likely to use a slicing machine if you were using the __________ method to produce cookies.
Verizon [17]

You would be most likely to use a slicing machine if you were using the <u>icebox </u>method to produce cookies.

In the icebox method a type of cookie in which the dough is made, rolled into a stick, and refrigerated until the dough hardens. The dough can be removed from the refrigerator, cut into individual pieces, and then baked. The rest of the dough is returned to the refrigerator until needed.

Icebox method, also known as refrigerator cookies, are sliced ​​and baked cookies. The dough is formed into logs, chilled in the refrigerator (also called an icebox), sliced ​​, and then baked.

Learn more about the Icebox method here,

https://brainly.in/question/1513677

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7 0
1 year ago
What is the significance of "Er" in the diagram?
Drupady [299]

Answer:

The significance of "Er" in the diagram is :

B.) Threshold energy for reaction

Explanation:

Threshold energy : It is total amount of energy required by the reactant molecule to reach the transition state .

Activation energy : It is the excess energy absorbed by the molecules to reach the transition state.

<u>Activation Energy = Threshold Energy - Average Kinetic Energy</u>

<u>This means Activation energy decreases on increasing kinetic energy</u>

On increasing Temperature average kinetic energy of the molecule increases which reduces the activation energy and the reaction occur faster in that case.

Catalyst also reduces the Activation energy.

<u>Er = Threshshold energy for reaction at 30 degree</u>

<u>Ea = Activation Energy</u>

<u>The given figure shows that the threshold energy decreases on increasing the temperature</u>

<u>Only the molecule having energy greater than Er can react to form product</u>

3 0
3 years ago
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Consider the chemical equation in equilibrium. A(g) 2B(g) Double headed arrow. C(g) D(g) heat What will happen to the equilibriu
Mazyrski [523]

If the temperature is increased then reaction will shift to the left because heat is absorbed.

<h3>What is equilibrium state?</h3>

Equilibrium of any reaction is that state in which concentration of reactant and concentration of product will be constant.

Given chemical reaction is:

A(g) + 2B(g) ⇄ C(g) + D(g)

From the equilibrium state reaction will move only that side which will contribute to maintain the stable state. In the forward reaction heat is released as mention in the question. So, when the temperature of reaction is increased then it shifts towards the left side by absorbing the heat and maintain the stability.

Hence, option (2) is correct, i.e. It will shift to the left because heat is absorbed.

To know more about equilibrium, visit the below link:

brainly.com/question/14297698

6 0
2 years ago
Helpppp nowwww plsss!!
pogonyaev

Answer:

A

Explanation:

if the earth slows down then that will give more time to the sun meaning days/nights will be longer

5 0
3 years ago
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