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3241004551 [841]
2 years ago
13

14. Which group below correctly list bases that completely dissociate in water?

Chemistry
1 answer:
ArbitrLikvidat [17]2 years ago
7 0

Answer:14=D

15=B

16=D

17=C

18=A

19=D

Explanation: I did this and got a 100% °³°

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When heat is applied gradually and evenly to solid ice at 0 Celsius, it melts. Does the temperature change while it is melting t
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No, the added heat melts the ice, but the result is water at the same temperature. Hence, option B is correct.

<h3>What is temperature?</h3>

The degree of hotness or coldness is measured on a definite scale.

Temperature doesn't change as heat is added during a phase change; for example, when the ice melts.

During the phase change, the added heat doesn't make the molecules move faster, but rather further apart.

Thus, No, the added heat melts the ice, but the result is water at the same temperature.

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brainly.com/question/11464844

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10 Points! Which type of fossil is formed when a rock hardens inside a mold fossil?
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Answer:

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How is rubidium used
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Answer:

Rubidium is used in vacuum tubes as a getter, a material that combines with and removes trace gases from vacuum tubes. It is also used in the manufacture of photocells and in special glasses. Since it is easily ionized, it might be used as a propellant in ion engines on spacecraft.

Symbol: Rb (37)

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6 0
3 years ago
Antique paintings will deteriorate more rapidly in a humid environment. Art museums will combat this by placing a desiccant into
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233.1g

Explanation:

Given:

Formula units of FeCl₃ = 8.65 x 10²³ formula units

Unknown:

Mass of the FeCl₃ = ?

Solution:

The formula unit is the same as the amount of subatomic particles in an atom.

  1 mole of a substance = 6.02 x 10²³ formula units

 For  8.65 x 10²³ formula units; the number of moles;

  Number of moles = \frac{8.65 x 10 ^{23} }{6.02 x 10^{23} } = 1.44moles

Now to find the mass of  FeCl₃;

   Mass of  FeCl₃ = 1.44 x 162.2 = 233.1g

learn more:

Number of moles brainly.com/question/1841136

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3 0
3 years ago
The solid block shown below has a mass of 146 grams. THE DIMENSIONS OF THE BLOCK ARE- 3.0 cm by 4.5 cm by 7.0 cm. What is the bl
Amiraneli [1.4K]

Explanation:

D=m÷v

D=146÷(3×4.5×7)

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3 years ago
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