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olasank [31]
4 years ago
7

Why does the alcohol level in the thermometer rises or falls when you place it in water?

Chemistry
1 answer:
Vladimir [108]4 years ago
6 0

If you place teh thermometer in warmer fluid the alcohol level will rise because of the constant motion and / or vibration of molecules..the highe the temp the more room ther is for molecules to spread out that is why it rises.

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Drag the handle on the left and adjust the length of the box to 5 nm. (Because no other dimensions of the box change, its length
kvv77 [185]

Answer:

Length (nm) Pressure (atm)

5.0 11.7

6.0 9.8

7.0 8.4

8.0 7.2

9.0 6.6

10.0 5.8

Explanation:

This is also PLATOS answer!!

7 0
3 years ago
Which of the following is an example of a model? PV=nRT, Geographical map, I believe that aliens exist, all of the above.
aleksandrvk [35]

<u>Answer:</u> The correct answer is geographical map.

<u>Explanation:</u>

Model is defined as the three dimensional representation of a proposed structure in a smaller scale.

For the given options:

<u>Option 1:</u>  PV = nRT

This is a proposed law. This law is known as ideal gas law. A law is defined as the rule which defined a correct procedure. For any gas behaving ideally, this law is used.

<u>Option 2:</u> Geographical map

Map is defined as the diagrammatic representation of an area of land or sea which also shows physical features, roads, cities etc..

A 3-D model can be prepared for geographical map.

<u>Option 3:</u> I believe that aliens exist

This is a hypothetical statement. It is a smart guess by the means of set of assumptions and observations. For its validation, we need to conduct some experiments.

Hence, the correct answer is geographical map.

3 0
3 years ago
Read 2 more answers
Hydrogen is not chemically stable because
Degger [83]
Hydrogen have only one electron and easily form compounds with other elements that is the reason hydrogen is chemically unstable
5 0
3 years ago
How much energy is required when a 142.1 gram sample of aluminum goes from 25.5°C to 46°C? (the specific heat of aluminum is 0.9
vfiekz [6]

Answer:

2621.75 j heat is required to increase the temperature 25.5°C to 46°C.

Explanation:

Given data:

Mass of sample = 142.1 g

Initial temperature = 25.5°C

Final temperature = 46°C

Specific heat capacity of Al = 0.90 J/g.°C

Solution:

Formula:

Q = m.c. ΔT

Q = amount of heat absorbed or released

m = mass of given substance

c = specific heat capacity of substance

ΔT = change in temperature

ΔT = 46°C - 25.5°C

ΔT = 20.5°C

Q = 142.1 × 0.90 J/g.°C × 20.5°C

Q = 2621.75 j

Thus,  2621.75 j heat is required to increase the temperature 25.5°C to 46°C.

4 0
3 years ago
To avoid the look of missing data in a report, use the Hide Duplicates property on ____ field
Sloan [31]
The correct answer for the blanks is : Primary key field
The primary key field is a place to record data that is unique to each record in the database or file. When you perform your hide duplicate command on primary key field, it will prevent any records from having the same value
8 0
3 years ago
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