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m_a_m_a [10]
3 years ago
5

Key Questions and Terms Notes

Chemistry
1 answer:
Elanso [62]3 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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What is the total number of ions in one formula unit of (NH4)2CO3?
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There are 3  ions in one formula unit of (NH4)2CO3.

Ions present in  Ammonium carbonate.(NH4)2CO3

(NH4)2CO3 is called Ammonium carbonate. The formula indicates that in one mole of ammonium carbonate, There are

  • Two moles of ammonium ions,NH₄⁺ with valency of +1.
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When 1 mole of ammonium carbonate is dissolved in water it gives

(NH₄)₂CO₃   ₊  H₂O---->2NH₄⁺    ₊  CO₃²⁻

Ions present are 2NH₄⁺   and CO₃²⁻

Learn more on (NH4)2CO3 here:brainly.com/question/2272720

4 0
2 years ago
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What is the pH of 0.12M HNO3
Phoenix [80]

Answer:

pH= 0.92

Explanation:

HNO3-> H^+ +NO3^-

HNO3 is a strong acid, so it fully dissociates

[HNO3] = 0.12M    [H^+] = 0.12M  

pH= -log[H^+]

pH=-log[.12] = 0.92

pH = 0.92

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0.1

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To make a supersaturated solution of, potassium permanganate KMn0₄ . We are also given some amazing data regarding this solid, including the fact that it can bind 6.4 grams per 100 grams of water at 20 degrees Celsius. As the temperature rises, capacity increases. The scalability curve's upward to right slope is thus mentioned. That implies that we get a curve when we plot temperature against capability. The argument is that when we boost temperature, we increase liability, even though we were not promised that something similar was linear. Thus, we must add as much than it can dissipate at room temperature in order to create a supersaturated solution. For every 100 grams of solution we use of 100 grams of water, we will need to add 6.4 grams of came in a Ford if we add additional van. Therefore, we need to employ 12 1 a, potassium permanganate, to create 200 milliliters or 200 grams of water. The salt must then completely dissolve by heating the solution above room temperature. If it cools down too quickly, we want to gradually bring the temperature down to room temperature. It will most likely precipitate if we put it in an ice bath. But if we gradually cool back down to 20 degrees, we ought to be able to keep around for a while.

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