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leonid [27]
3 years ago
7

Complete the statements by writing the number

Chemistry
1 answer:
dezoksy [38]3 years ago
3 0

Answer :

The substance is in the gas phase only in region  → 5

The substance is in both the liquid and the solid  phase in region  → 2

The substance is in only the liquid phase in region  → 3

The melting point is the temperature at region  → 2

The boiling point is the temperature at region → 4

Explanation :

Six phases of substance:

  • Melting or fusion : In this process the phase changes from solid state to liquid state at constant temperature.
  • Freezing : In this process the phase changes from liquid state to solid state at constant temperature.
  • Evaporation : In this process the phase changes from liquid state to gaseous state at constant temperature.
  • Condensation : In this process the phase changes from gaseous state to liquid state at constant temperature.
  • Sublimation : In this process the phase changes from solid state to gaseous state without passing through the liquid state at constant temperature.
  • Deposition : In this process the phase changes from gaseous state to solid state without passing through the liquid state at constant temperature.
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Separating techniques - Chromatography
vodomira [7]

The method that can be used to separate the mixture is chromatography.

<h3>What is chromatography?</h3>

"Chromatography" is obtained form a Greek word which literarily means, color writing. It is a method of separation which is common in separating a mixture of pigments.

To obtain the colors used, two solvents are mixed and the sample ink is dissolved in the solvents then spotted on a thin layer and put into a TLC chamber then the chromatogram is allowed to develop.

The various components of the pigment will appear on the chromatogram and can be identified using spectrophotometry. The Rf values of each component can also be used to identify it.'

Learn more about chromatography: brainly.com/question/26491567

7 0
2 years ago
Calorimeter containing 1000 grans of water the initial temperature of water is 24.85 degrees . the heat of water is 4.184 j/g de
kvasek [131]
<h3><u>Answer;</u></h3>

10.80 ° C

<h3><u>Explanation;</u></h3>

From the information given;

Initial temperature of water =  24.85°C

Final temperature of water = 35.65°C

Mass of water = 1000 g

The specific heat of water ,c = 4.184 J/g °C.

The heat capacity of the calorimeter  = 695 J/ °C

Change in temperature ΔT = 35.65°C - 24.85°C

                                             = 10.80°C

3 0
3 years ago
What is the mole ratio of the following equation?
Liono4ka [1.6K]
The mole ratio would be 2:2:2
7 0
2 years ago
Identify the type of reaction in KBrO3(s)  KBr(s)<br> + O2(g)
lord [1]
<span>I believe an oxidation reaction is occurring</span>
5 0
3 years ago
Read 2 more answers
What is the specific heat of a substance if 1450 calories are required to raise the temperature of a 240g sample by 20℃?
bazaltina [42]

Answer:

6960 J/kg°C

Explanation:

specific heat= mass×specific heat capacity×increase in temperature

specific heat= 0.240×1450×20= 6960 J/kg°C

hope it helps!

5 0
3 years ago
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