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natima [27]
2 years ago
9

Write a complete chemical formula, including physical state symbol, for each element listed below in its standard state. The fir

st row of the table has been completed for you.
element formula
iron Fe(s)
plutonium
lodine
helium
Chemistry
1 answer:
Irina18 [472]2 years ago
6 0

Explanation:

Plutonium

The symbol is Pu and it exists in the solid state.

The complete chemical formular is given as; Pu(s)

Iodine

The symbol is I and it exists exists as a lustrous, purple-black non-metallic solid at standard conditions

The complete chemical formular is given as; I(s)

Helium

The symbol is He and it exists in the gaseous state.

Te complete chemical formular is given as; He(g)

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Identify the oxidizing and reducing agents in the following: H2S(aq) + Cl2(g) -> S(s) + 2HCI (aq)
alexgriva [62]

The oxidizing and reducing agent in the above redox reaction are hydrogen sulphide (H2S) and Chlorine (Cl) respectively.

<h3>What is an oxidizing and reducing agent?</h3>

An oxidizing agent is any substance that oxidizes, or receives electrons from another substance and as a result, becoming reduced.

On the other hand, a reducing agent is any substance that reduces or donates electrons to another and as a result becomes oxidized.

According to this reaction; H2S(aq) + Cl2(g) -> S(s) + 2HCI (aq)

  • H2S accepts electrons from Cl2 and becomes reduced to S
  • Cl2 donates electrons to H2S and becomes oxidized to HCl

Therefore, the oxidizing and reducing agent in the above redox reaction are hydrogen sulphide (H2S) and Chlorine (Cl) respectively.

Learn more about oxidizing agent at: brainly.com/question/10547418

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8 0
1 year ago
How much time would it take for 5.2 x 10^5 atoms of fermium-253 (half-life 3 days) to decay to 6.5 x 104 atoms?
Jlenok [28]

Answer:

9 days, or 3 half-lives

Explanation:

5.2x10^5=520000

6.5x10^4=65000

65000/520000=1/8, or 3 half-lives

3x3=9 days

I'm not the greatest at Chem but this seems more like math than Chem :)

4 0
2 years ago
What are the four categories commonly used to classify chemicals and chemical agents in the graphic communications industry
Oduvanchick [21]

Answer:

Organic

Plate making

Ink mists

Gas, fumes and dust

Explanation:

the four categories commonly used to classify chemicals and chemical agents in the graphic communications industry are Organic ,Plate making ,Ink mists, Gas, fumes and dust.

Organic refer to those chemicals gotten from living matter and are natural.

Plate making refers to how plates are make and it carry image in the printing process.

Ink mist gotten from ink is use in graphic designs for painting and color indication.

5 0
3 years ago
What are two possible fates of stars larger than 8 sol
attashe74 [19]
Stars born larger than 8 solar masses usually retain enough mass to undergo core collapse, with the resulting shock wave producing a Type Ib supernova (spectra without Hydrogen or Silicon lines, with Helium lines), a Type Ic supernova (without Hydrogen or Helium or Silicon lines) or a Type II supernova

I hope it’s what you need
7 0
3 years ago
PLEASE HELP I REALLY NEED THIS IM LATE
ANTONII [103]

Answer:

Pitch:it refers to the highest and lowness of a sound.

Wavelength: It is the distance measured from one crest to another, or from one trough to another.

Refraction of Light: The light bends as it travels from one medium to another.

Reflection of Light: It happens when light bounces back after hitting a well-polished surface.

Crest: The highest point of the wave from the center.

<u>I hope this helps! :)</u>

4 0
2 years ago
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