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kap26 [50]
2 years ago
14

Describe each of the following properties of water…

Chemistry
1 answer:
Allushta [10]2 years ago
5 0

Cohesion – The attraction of water molecules to each other and creates high surface tension in water. An example of how it helps support life on Earth is that it allows insects to walk across the surface.

Adhesion – The attraction of water molecules to other substances and allows water to travel against gravity. An example of this is water moving up a tree even when there is gravity.

Specific heat capacity – the heat required to raise the temperature of the unit mass of a given substance by a given amount. An example of this is a swimming pool staying the same temperature no matter if it is hot or cold outside.

Expansion upon freezing – Water expands when its frozen which will keep it from sinking. Floating ice keeps the water underneath it warm. An example of this is an iceberg floating on top of a body of water.

Universal solvent – Can dissolve almost anything, usually water. An example is that water transports important chemicals or nutrients/minerals that is needed for all living organisms.

I just learned about this lol...

Hope this helps UwU

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True! 
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3 years ago
What is the net ionic equation for the reaction that occurs when aqueous solutions of koh and zncl2 are mixed?
Mademuasel [1]

Answer:

Net ionic equation:

Zn²⁺(aq)  +   2OH⁻(aq)     →    Zn(OH)₂(s)

Explanation:

Chemical equation:

ZnCl₂ + KOH    →   KCl  + Zn(OH)₂

Balanced chemical equation:

ZnCl₂ + 2KOH    →   2KCl  +Zn(OH)₂

Ionic equation;

Zn²⁺(aq)  + 2Cl⁻(aq)  + 2K⁺(aq)  +  2OH⁻(aq)     →   2K⁺(aq)  + 2Cl⁻(aq)   +Zn(OH)₂(s)

Net ionic equation:

Zn²⁺(aq)  +   2OH⁻(aq)     →    Zn(OH)₂(s)

The K⁺  and Cl⁻  are spectator ions that's why these are not written in net ionic equation. The  Zn(OH)₂ can not be splitted into ions because it is present in solid form.

Spectator ions:

These ions are same in both side of chemical reaction. These ions are cancel out. Their presence can not effect the equilibrium of reaction that's why these ions are omitted in net ionic equation.  

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deff fn [24]
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A molecule has three bonded atoms around the central atom. The central atom does not have any lone pairs. What is the geometry o
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Answer:

trigonal planar

Explanation:

Tri=three, three-dimensional arrangement of the atoms that constitute a molecule.

5 0
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The measure of gravity on Earth determines our __________.
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The correct answer are:

#1. The measure of gravity on earth determines our weight

#2. The closer an object is to the center of earth, the greater the gravitational force on that object.

#3. Objects in a free fall are constantly picking up speed as they fall back to earth is true.

Brainliest please!

6 0
3 years ago
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