CHEMISTRY MIDDLE SCHOOL

suppose you increase the mass of wood you are burning in a fireplace. what will happen to the total mass of ash what will happen to the total mass of ash,gases,and water vapor

Answers

Answer 1
Answer: Due to the law of conservation of mass, the mass in the end of the change will remain the same.

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Find out the application of all the inert gases prepare a chart

Answers

Inert gases are group 18 elements. They have there valance shell completely filled, hence they donot undergo chemical reactions under normal conditions.

Following are the list of inert gases, along with their application:

Helium:Used as component of breathing gases due to its poor solubility in fluids or lipids. Helium is used in  low temperature cryogenics.

Neon: Neon finds widespread applications in daily life such as lights, fog lights, TV cine-scopes, lasers, luminous warnings etc.

Argon: Argon is used in electrical components  to provide a protective heat transfer medium for semiconductors. Argon is also capable to fill fluorescent and incandescent light bulbs. It assist in providing blue light.

Krypton: Krypton are usually mixed with a halogen to produce excimer lasers

Xenon: It is possible to generate X-rays from Xe. When Xe mixed with oxygen, it has to capability to enhance the contrast in CT imaging.

Radon: Radon is a radioactive element, which is used for radiotherapy and relief from arthritis.

Noble gases/inert gases are used in various fields including lamp fillers, metal welding or coolers

Further explanation

Noble gas (group 8A in the periodic system the element) is an element that is not reactive (stable)/inert

Its stability is caused by:

  • 1. ns² np⁶ electron configuration (except He: 1s2), electrons in the subshell are already paired, making it difficult to form bonds with other elements
  • 2. High ionization energy making it difficult to form positive ions (ionic compounds)
  • 3. Low electron affinity that makes it difficult to bind electrons to become negative ions

Some noble gases such as Ar, Kr are obtained from multilevel distillation

The use of noble gases include:

  • 1. Helium: filler of a gas balloon, mix with oxygen in a diver's tube, coolant
  • 2. Neon: filler lights in red, can penetrate the fog
  • 3. Argon: metal welding
  • 4. Krypton and Xenon: colorful lights

Learn more

the periodic table

brainly.com/question/8543126

electron affinity

brainly.com/question/1440853

ionic compounds:Al₂X₃, XCO₃

brainly.com/question/2014634

Keywords : inert gas, application,electron configuration

Please answer!!!!!!!!!!!!!

Answers

I believe it’s Decreased Humus
humus is the organic component of soil formed by the decomposition of leaves and other plant material by soil microorganisms

Answer:

B. Decreased humus

Explanation:

1.The ___________ energy in a mechanical system is determined by adding the potential and kinetic energy together.


total
massive
2.
The initial ___________ energy is equal to zero because the starting point is set at zero height to make things easier.


kinetic
potential
3.
In the example, the final kinetic energy is determined to be ___________ because at the peak height, the ball instantaneously stops.


positive
zero
negative
4.
In this system, potential and kinetic energy are ________________ proportional.


inversely
directly

Answers

The system has an energy that can be conserved in the system, and when work is performed, the energy has been converted to working energy.

The following sentences can be completed as:

  • The total energy in a mechanical system is determined by adding the potential and kinetic energy together.

Total energy = Potential energy + Kinetic energy

  • The initial Kinetic energy is equal to zero because the starting point is set at zero height to make things easier.

  • In the example, the final kinetic energy is determined to be zero because, at the peak height, the ball instantaneously stops.

  • In this system, potential and kinetic energy are inversely proportional.

For more information about kinetic and potential energy, refer to the link:

brainly.com/question/22228414

Answer:

1)total, 2)potential, 3)zero, 4)inversely.

Explanation:

1) The total energy in a mechanical system is determined by adding the potential and kinetic energy together.

2) The initial potential energy is equal to zero because the starting point is set at zero height to make things easier.

3) In the example, the final kinetic energy is determined to be zero because at the peak height, the ball instantaneously stops.

4) In this system, potential and kinetic energy are inversely proportional.

what best explains why the use of fossil fuels for energy production is a not a long-term solution to the world's energy needs?

Answers

We can't use fossil fuels forever, someday we will run out of coal for example.

!!!!HELP ASAP 10 points!!!Which of the following families contains liquids, solids, and gases?A. The alkali metals
B. The noble gases
C. The halogens
D. The alkaline earth metals

Answers

The halogens is correct

Answer:

C. The halogens

Explanation:

What types of atoms form cations

Answers

Cations are formed when atoms lose electrons, resulting in a net positive charge.

Generally, cations are formed by atoms of metals. Metals tend to have relatively low ionization energies, allowing them to easily lose electrons and form positively charged cations. Examples of metals that commonly form cations include sodium (Na⁺), calcium (Ca²⁺), iron (Fe²⁺ or Fe³⁺), and aluminum (Al³⁺), among others. It is important to note that not all metals form cations, as some metals can exhibit variable oxidation states or form anions in certain compounds.

Hence, Cations are formed when atoms lose electrons.

Learn more about cations here:

brainly.com/question/1626694

#SPJ 2

Answer:

positively charged atoms

Explanation:
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