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ella [17]
4 years ago
13

A) What is seen when phenolphthalein is added to the filtered water with chalk? ( and with calcium hydroxide?)

Chemistry
1 answer:
torisob [31]4 years ago
8 0

Answer:

read the book property

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What is the function of potassium chlorate (V) powder?
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Identify the electromagnetic waves with the longest wavelengths and the electromagnetic waves with the shortest wavelength
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3 years ago
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If an object absorbs all colors but blue, what color would it appear to be?
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4 years ago
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think about putting a glass of water on the counter, in the freezer, and on a hot stove how does the temperature of the water af
Shtirlitz [24]

The kinetic energy and the physical state of water depend strongly on the temperature;

  • Firstly, The kinetic energy of water on a hot stove is higher than that on the counter in the freezer; that the kinetic energy is directly proportional to the temperature according to the relation: K = \frac{3RT}{2NA} ; where R is the universal gas constant, T is the temperature and NA is Avogadro number.

As the temperature increases, the speed of colliding molecules increases and the kinetic energy increases.

  • Secondly, The physical state of water depends on the temperature; water has three states (gas, liquid and solid) depends on the temperature.
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3 0
3 years ago
Wave Properties
konstantin123 [22]

Answer:

f = 80  flutter/ second

T= 0.0125 sec

Explanation:

Given data:

Fluttering of wings = 4800 time per minute

Frequency of wings = ?

Period for one wing in sec = ?

Solution:

There are 60 seconds in one minute, thus frequency of wings

4800/60 = 80  flutter per second

Period:

T = 1/f

T = 1/80

T= 0.0125 sec

3 0
3 years ago
Read 2 more answers
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