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Kay [80]
3 years ago
12

What factor is most important in determining whether water is a solid liquid or gas

Chemistry
2 answers:
Usimov [2.4K]3 years ago
6 0

Answer:

Temperature

Explanation:

temperatures below 0 degrees celsius will turn water into ice  

Temperatures 1 to 99 degrees celsius is water in liquid form

Temperatures of over 100 degrees celsius liquid turns into gas

ExtremeBDS [4]3 years ago
3 0

Answer:

Temperature

Explanation:

Water is the most essential element that is required by all living organisms. This water on earth exists in all the three states, namely solid, liquid and gas. The temperature is the main factor that describes if a water is present in any of the three forms.

When water is heated at a temperature of 100°C, it evaporates and changes into water vapor. This is the gaseous state of water and this process of transformation of water from liquid to gaseous state is known as the evaporation process.

When water is frozen at a temperature of 0°C, then it freezes and forms ice. This is the solid state of water.

When water has a temperature between 0 to 100°C then , it exist in the state of liquid.

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3 0
2 years ago
A 1.0 mole sample of fluorine gas at 25 °C has an average molecular velocity of 415 m/s. What is the total KE of the gas sample?
Mariana [72]

The total kinetic energy of the gas sample is 3.3 KJ

<h3>What is kinetic energy? </h3>

This is the energy possessed by an object in motion. Mathematically, it can be expressed as:

KE = ½mv²

Where

  • KE is the kinetic energy
  • m is the mass
  • v is the velocity

<h3>How to determine the mass of the fluorine gas</h3>
  • Molar mass of fluorine gas = 38 g/mol
  • Mole of fluorine gas = 1 mole
  • Mass of fluorine gas = ?

Mass = mole × molar mass

Mass of fluorine gas = 1 × 38

Mass of fluorine gas = 38 g

<h3>How to determine the KE of the gas sample</h3>
  • Mass (m) = 38 g = 38 / 1000 = 0.038 Kg
  • Velocity (v) = 415 m/s
  • Kinetic energy (KE) =?

KE = ½mv²

KE = ½ × 0.038 × 415²

KE = 3272.275 J

Divide by 1000 to express in kilojoule

KE = 3272.275 / 1000

KE = 3.3 KJ

Learn more about energy:

brainly.com/question/10703928

#SPJ1

4 0
1 year ago
The majority of the elements essential to life are found in what part of the periodic table?
IRINA_888 [86]
The rows in the top third - This group consists of elements like Sodium, Magnesium, Potassium and Calcium on the right and Chlorine, Carbon, Nitrogen and Oxygen on the left.
Sodium and Chlorine are components of salt, a very important compound of our blood, essential for transferring electrical signals from the brain to the rest of the body and vice versa. Calcium is the building block of our bones, while Magnesium and potassium ensure proper functioning of our organs.

3 0
2 years ago
The elements from this section of the periodic table all belong to the same
krok68 [10]

Answer:

Option C = same period.

Explanation:

All these elements belongs to second period of periodic table. This period consist of eight elements lithium, beryllium, boron, carbon, nitrogen, oxygen, fluorine and neon.

Electronic configuration of lithium:

Li₃ = [He] 2s¹

Electronic configuration of beryllium:

Be₄ = [He] 2s²

Electronic configuration of boron:

B₅ = [He] 2s² 2p¹

Electronic configuration of carbon:

C₆ = [He] 2s² 2p²

Electronic configuration of nitrogen:

N₇ = [He] 2s² 2p³

Electronic configuration of oxygen:

O₈ = [He] 2s² 2p⁴

Electronic configuration of fluorine:

F₉ = [He] 2s² 2p⁵

Electronic configuration of neon:

Ne₁₀ = [He] 2s² 2p⁶

All these elements present in same period having same electronic shell.

However their families, valance electrons and group are different. Boron have three valance electrons and belongs to group 3A. Carbon belongs to group 4A and have 4 valance electrons. Nitrogen belongs to group 5A and have five valance electrons. Oxygen belongs to group 6A and have six valance electrons. Fluorine belongs to group 7A and have seven valance electrons.

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2 years ago
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Food handler be unsuccessful to wash hands correctly after spending the restroom or when their hands become dirty. Food handler coughs or sneezes on foodstuff. Food handler traces or scratches wounds, cuts, or sores, and then touches food. Food handler works though sick. <span>
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3 years ago
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