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Nikitich [7]
3 years ago
5

The chart shows four environments and the kind of succession that would occur there.

Chemistry
2 answers:
Volgvan3 years ago
8 0

Answer: row 1

Explanation:

Komok [63]3 years ago
4 0

Answer:

Row 1

Explanation:

Hope this helps!

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Identify the true statements about surface tension. Molecules along the surface of a liquid behave differently than those in the
sergejj [24]
<h3><u>Answer;</u></h3>
  • Molecules along the surface of a liquid behave differently than those in the bulk liquid.
  • Cohesive forces attract the molecules of the liquid to one another.
  • Surface tension increases as the temperature of the liquid rises
<h3><u>Explanation;</u></h3>
  • Surface tension is measured as the energy required to increase the surface area of a liquid by a unit of area. The surface tension of a liquid results from an imbalance of intermolecular attractive forces, the cohesive forces between molecules.
  • A molecule in the bulk liquid experiences cohesive forces with other molecules in all directions, while a molecule at the surface of a liquid experiences only net inward cohesive forces.
  • Surface tension decreases when temperature increases because cohesive forces decrease with an increase of molecular thermal activity.
8 0
3 years ago
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What makes atoms electrically neutral?
Sophie [7]
The atom has equal amount of Protons and electrons it is Neutral
4 0
2 years ago
A cord is used to vertically lower an initially stationary block of mass m kg at a constant downward acceleration of g/4. the bl
Natali5045456 [20]

(a) We know that work is the product of Force and Distance so: (in this case Distance is negative since going down so –d)

work = force * distance

work = M * (g - g/4) * -d

work = -3Mgd/4 <span>

(b) The work by the weight of the block is simply:</span>

work = Mgd <span>

(c) The kinetic energy is simply equivalent to the net work, therefore:</span>

KE = net work

KE = Mgd/4 <span>

(d) The velocity is:</span>

v = √(2*KE/M)

Plugging in the value of KE from c:

v = √(2*Mgd / 4M)

<span>v = √(gd / 2) </span>

5 0
3 years ago
True or False Photosynthesis and Cell Respiration are opposite reactions. Photosynthesis provides the molecules needed for cell
Bezzdna [24]
True but in more depth they both have the some same qualities in function but provide for each other when one makes oxygen, H2O, and energy and cellular respiration makes CO2 and glucose
6 0
2 years ago
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A chamber with a fixed volume is shown above. The temperature of the gas inside the chamber before heating is 25.2 C and it’s pr
rusak2 [61]

Answer:

Explanation:

Given parameters:

Initial temperature T₁  = 25.2°C  = 25.2 + 273  = 298.2K

Initial pressure  = P₁  = 0.6atm

Final temperature = 72.4°C   = 72.4 + 273  = 345.4K

Unknown:

Final pressure = ?

Solution:

To solve this problem, we use an adaption of the combined gas law where the volume gas is fixed. This simplification results into:

                  \frac{P_{1} }{T_{1} }   = \frac{P_{2} }{T_{2} }

where P and T are temperatures, 1 and 2 are initial and final temperatures.

 Input the parameters and solve;

          \frac{0.6}{298.2}   = \frac{P_{2} }{345.4}  

          P₂   = 0.7atm

         

3 0
3 years ago
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