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Leokris [45]
3 years ago
12

Which experiment best shows water’s ability to act as a solvent? raise the temperature of water and record its boiling point. fr

eeze a flexible vessel of water and watch it expand. pour an ionic solid into water and see if it vanishes. place a leaf on top of the surface of water and see if it sinks?
Physics
2 answers:
IrinaVladis [17]3 years ago
8 0
The vanishing of an ionic solid (like table salt) would be an example of acting like a solvent
IceJOKER [234]3 years ago
4 0

Answer: pour an ionic solid into water and see if it vanishes.

Explanation: The solubility of substances is governed by: Like dissolves like, which states that polar compounds are soluble in polar solvents and non polar compounds are soluble in non polar solvents.

Ionic compounds are formed by combination of positively charged cations and negatively charged anions which are held by strong coloumbic forces.When ionic compounds are dissolved in water, the ions are dissociated due to high dielectric constant of water and thus dissolve in water.

Water being a polar solvent is able to dissolve ionic or polar compounds in it.

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masha68 [24]
The answer is C. <span>Light travels at different speeds in water and in glass.</span>
7 0
3 years ago
Up to a point, the elongation of a spring is directly proportional to the force applied to it. Once you extend the spring more t
olga2289 [7]

The force result in stretching the spring 10.0 centimeters is 2.5N.

<h3>What is Hooke's law?</h3>

If a spring is stretched from its equilibrium position, then a force with magnitude proportional to the increase in length from the equilibrium length is pulling each end.

F = kx

where k is the proportionality constant called the spring constant or force constant.

Up to a point, the elongation of a spring is directly proportional to the force applied to it. Once you extend the spring more than 10.0 centimeters, however, it no longer follows that simple linear rule.

Let the spring constant be very low 0.04N/m

The force applied is

F = 10 cm / 0.04

F = 0.1 m  / 0.04

F = 2.5 N

Thus, the force result in stretching the spring 10cm is 2.5 N.

Learn more about hooke's law.

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5 0
2 years ago
What is happening in this picture?
Alexandra [31]
The answer is b no problem
7 0
3 years ago
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The compressor on an air conditioner draws 66.1 a when it starts up. the start-up time is about 0.388 s. how much charge passes
Ierofanga [76]
The current intensity is defined as the amount of charge flowing through a certain point of a wire divided by the time interval:
I= \frac{Q}{\Delta t}
where Q is the charge and \Delta t is the time. Re-arranging the formula, we have
Q=I \Delta t

for the compressor in our problem, the intensity of current is I=66.1 A, while the time is \Delta t= 0.388 s, so the amount of charge that crosses a certain point of the circuit during this time is
Q=I \Delta t=(66.1 A)(0.388 s)=25.65 C
5 0
3 years ago
What is the maximum eccentricity an ellipse can have
VashaNatasha [74]

Answer: 1

Explanation: The highest eccentricity an ellipse can have is '1', a straight line.

7 0
3 years ago
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