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aleksandr82 [10.1K]
2 years ago
9

The photo shows an old-fashloned mercury thermometer. Mercury is a liquid metal that expands when It Is heated. Mercury Narrow t

ube Bulb with thin glass covering Which statement best describes how the thermometer's bulb works?
A. The thin glass covering transfers thermal energy to the mercury so it can start to expand sooner.
B. The mercury easily transfers thermal energy so the thin glass covering can start to expand, C. The thin glass covering reflects thermal energy to stop the mercury from expanding, D. The mercury reflects thermal energy so the speed of energy transfer through the glass happens quickly.​
Chemistry
2 answers:
natta225 [31]2 years ago
8 0

Answer:

A

Explanation:

I took the test a p e x approved

Hope this helps plz hit the crown :D

Tom [10]2 years ago
4 0

Answer:

A

Explanation:

The thin glass covering transfers thermal energy just like putting normal glass in hot substance transfers heat to the mercury, mercury is a metal that is liquid at room temperature and freezes at about 40° celsius which is why it is used for measuring temperature of mostly humans

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If a piece of aluminum with a mass of 3.99 g and a temperature of 100.0 °C is dropped
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Answer:

The final temperature of the system is 27.3°C.

Explanation:

Heat lost by aluminum = 3.99 × 0.91 × (100-T)

                                     = 3.631 (100-T)

Heat gained by water = 10 × 4.184 × (T-21)

                                    = 41.84 (T-21)

As,

                                Heat gained = Heat loss

                          or, 3.631(100-T) = 41.84(T-21)

                          or,363.1 -  3.631 T = 41.84 T - 878.64)

                          or, (41.84+ 3.631) T = 878.64 +363.1

                          or  T= \frac{1241.74}{45.47}

                         or, T = 27.3°C

Hence the final temperature is 27.3°C.

8 0
3 years ago
What are the monomers of bakelite​
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What seals the gauge line fitting to the gauge manifold
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aluminum bromide reacts with chlorine gas to produce aluminum chloride and bromide gas. if we have 9 moles of chlorine gas. how
Luda [366]

Moles of Bromine produced = 9 moles

<h3>Further explanation</h3>

Given

9 moles of Chlorine gas

Word equation

Required

Moles of Chlorine produced

Solution

We change the word equation into a chemical equation (with a formula)

Aluminum bromide reacts with chlorine gas to produce Aluminum chloride and bromide gas

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moles Cl₂ = 9

Maybe you mean, <em>how many moles of Bromine can we produce?</em>

From equation, mol ratio Cl₂ : Br₂ = 3 : 3, so mol Br₂=mol Cl₂=9 moles

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