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m_a_m_a [10]
2 years ago
5

Key Questions and Terms Notes

Chemistry
1 answer:
Elanso [62]2 years ago
5 0

Answer:

Following are the solution to the given question:

Explanation:

  • Its interactions among light waves as well as different media were also called light products.
  • Even before sound rays hit a medium, the light rays bounce off.
  • Even at a similar angle with which the material initially struck its medium, sunlight reflecting.
  • When the light hits a mirror at such an angle of forty degrees, everything just rebonds at an angle of 40 degrees.
  • When light waves pass via a transparent medium, those who bend as well as change their direction.
  • Light is called transparent if it can pass via an object.
  • Whenever light waves strike a platform, this is neither re-elected nor refracted, nor expected to move.
  • The light of interacts with these materials are:

Reflection Mirror:

Water glass: refractive

Dark fabricate: Absorption 

  • Sound waves and waves of water are examples of matter waves.
  • Light waves and X-rays are electromagnetic waves.
  • There is no need for sound radiation to pass through a medium/requirement to communicate with other particles to travel like waves of matter.
  • No, even though sound waves didn't reach through the space vacuum.
  • Matter waves should interact with solid, liquid, or gas particulates to travel.

The light waves pass thru the air more quickly than sound waves.

Sound waves almost always go through a metal frame.

Light waves travel faster than electrical signals even though they don't have to crash in electromagnetic waves to particles.

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How many valence electrons do the halogens possess? group of answer choices
jok3333 [9.3K]

The valence electron does the halogens possess are 7

  • Valence electrons are found in the outermost energy level of an atom
  • They are involved in the formation of chemical bonding with other atoms.
  • The halogens elements are found in group 17 on the periodic table
  • The halogens include fluorine, chlorine, bromine, iodine and astatine.
  • They have seven valence electrons, so they are extremely reactive as they only need one more to fill their outer shell.
  • By octet rule we can say that the electron with 8 outer most shell is full and stable.

Hence the halogens posses 7 valence electron

Learn more about the valence electron on

brainly.com/question/13552988

#SPJ4

5 0
1 year ago
(11 points) can y'all do science on this app just wondering?
Shalnov [3]
Of course, you can ask science questions under biology or another subject.
7 0
2 years ago
Read 2 more answers
Can somebody please help me please?
Phoenix [80]

Answer:

7.74%

<em>Hope this helped! Have a good day.</em>

8 0
2 years ago
Read 2 more answers
In the reaction C zH4 + H2 - e) +4 CHo the carbon atoms are a) oxidized b) reduced c) cannot be determined
mars1129 [50]

Answer: Option (b) is the correct answer.

Explanation:

Reduction is defined as the process in which there occurs gain of hydrogen. Whereas oxidation is defined as the process in which there occurs loss of hydrogen.

As the given reaction is as follows.

      C_{2}H_{4} + H_{2} \rightarrow C_{2}H_{6}

Since, hydrogen is being added in this chemical reaction. It means that reduction is taking place and carbon atom is reduced.

Thus, we can conclude that in the given reaction carbon atoms are reduced.

4 0
3 years ago
Potassium forms an oxide containing 1 oxygen atom for every 2 atoms of potassium. what is the coefficient of oxygen in the balan
miskamm [114]
Potassium is an element with a symbol of K. When it forms an oxide, it means that it has undergone combustion. The complete reaction for this is

K + O₂ ⇒ K₂O

This is a combination reaction which involves two reactants and one single product. It is important to note that the Law of Conservation of Mass mass be obeyed at all times. Technically, the law involved in balancing reactions is the Law of Definite Proportions. This is obeyed by making sure that the number of a specific element is the same before and after the reaction. So, the complete balanced reaction for this is

2 K + 1/2 O₂ ⇒ K₂O

The coefficient of O₂ in the reaction is 1/2.
5 0
3 years ago
Read 2 more answers
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