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BigorU [14]
2 years ago
11

A bug walking on the surface of a puddle is depending on what property of water? high surface tension because of the attraction

between water molecules capillary action of water molecules to narrow objects such as bug legs low density of liquid water because of the bent molecular shape adhesion of water molecules to nonpolar structures such as hair and skin
Chemistry
1 answer:
arlik [135]2 years ago
5 0

High surface tension because of the attraction between water molecules helps bugs walk on the surface of the water.

<h3>How does surface tension help insects walk on water surface?</h3>

Surface tension is important for insects that walk on water. They would sink without it. When compared to air molecules, water molecules are more strongly attracted to one another. Due to cohesion, this makes them attract and cling to one another strongly in a body of water. The water molecules between the molecules at the water's surface are more strongly attracted to one another because they do not have water molecules surrounding them on all sides.

As a result, there is an inward force that forms a "film" at the surface and causes the water to act as though a thin membrane were covering it. Surface tension is the term for this phenomena.

Surface tension can be used to the advantage of some insect and spider species. They don't break the water's surface when they stand on it because their negligible weight is insufficient to dissipate the force of surface tension. Instead, they make dimples or indentations in the surface with their feet, which rebound to move the insect ahead. This enables them to move swiftly over ponds, lakes, and rivers in search of prey.

Learn more about surface tension here:

brainly.com/question/11348644

#SPJ4

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The water bottle contains 575 grams of water at 80°C. The water eventually cools to
Jet001 [13]

Answer:

–23000 Calories.

NOTE : The negative sign indicates that heat has been loss to the student back.

Explanation:

The following data were obtained from the question:

Mass (M) of water = 575 g

Initial temperature (T1) = 80 °C

Final temperature (T2) = 40 °C

Heat (Q) transferred =.?

Next, we shall determine the change in temperature (ΔT).

This is illustrated below:

Initial temperature (T1) = 80 °C

Final temperature (T2) = 40 °C

Change in temperature (ΔT) =?

Change in temperature (ΔT) = T2 – T1

Change in temperature (ΔT) = 40 – 80

Change in temperature (ΔT) = –40°C

Finally, we shall determine the heat transferred. This can be obtained as follow:

Mass (M) of water = 575 g

Change in temperature (ΔT) = –40°C

Specific heat capacity (C) of water = 1 Cal/g°C

Heat (Q) transferred =.?

Q = MCΔT

Q = 575 × 1 × –40

Q = –23000 Calories

NOTE : The negative sign indicates that heat has been loss to the student back.

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What term refers to a group of nerve cells that are connected to one another?
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B. Nerve network!

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1. Describe what an irreversible change is.
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Answer:

A change is called irreversible if it cannot be changed back again. In an irreversible change, new materials are always formed.

Explanation:

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CH3 + HCl &lt;=&gt; CH3Cl + H2O
dmitriy555 [2]

Answer:

The pressure of CH3OH and HCl will decrease.

The final partial pressure of HCl is 0.350038 atm

Explanation:

Step 1: Data given

Kp = 4.7 x 10^3 at 400K

Pressure of CH3OH = 0.250 atm

Pressure of HCl = 0.600 atm

Volume = 10.00 L

Step 2: The balanced equation

CH3OH(g) + HCl(g) <=> CH3Cl(g) + H2O(g)

Step 3: The initial pressure

p(CH3OH) = 0.250atm

p(HCl) = 0.600 atm

p(CH3Cl)= 0 atm

p(H2O) = 0 atm

Step 3: Calculate the pressure at the equilibrium

p(CH3OH) = 0.250 - X atm

p(HCl) = 0.600 - X atm

p(CH3Cl)= X atm

p(H2O) = X atm

Step 4: Calculate Kp

Kp = (pHO * pCH3Cl) / (pCH3* pHCl)

4.7 * 10³ =  X² /(0.250-X)(0.600-X)

X = 0.249962

p(CH3OH) = 0.250 - 0.249962 = 0.000038 atm

p(HCl) = 0.600 - 0.249962 = 0.350038 atm

p(CH3Cl)= 0.249962 atm

p(H2O) = 0.249962 atm

Kp = (0.249962 * 0.249962) / (0.000038 * 0.350038)

Kp = 4.7 *10³

The pressure of CH3OH and HCl will decrease.

The final partial pressure of HCl is 0.350038 atm

4 0
3 years ago
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