What is the best way to package and preserve a questioned document?

Chemistry

2 answers:

iren2701 [21]3 years ago

7 0

Plastic sheet protected

Zanzabum3 years ago

5 0

In a plastic sheet protector

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Use your answers from questions 1 and 2 as the basis for the first section of your lab report. This section provides your reader

Tom [10]

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8 0

3 years ago

What is the IUPAC name for the compound FeS?

densk [106]

The correct answer is option 3. The IUPAC name is Iron(II) sulfide. It is the less stable amorphous form. When this is powdered, it is pyrophoric or it ignites spontaneously in air. It readily reacts with hydrochloric acid producing hydrogen sulfide.

5 0

3 years ago

Alina [70]

Answer:

N - 1s²2s²2p³

Explanation:

Nitrogen is located in the p-block of the periodic table (groups 13-18) and is on the 2nd period.

The 2nd period tells us the principal energy level (a quantum number) is n = 2. Therefore, it must have already filled up the 1s sublevel.

The groups 13-18 on period 2 tells us that the 2s sublevel is also filled.

Nitrogen is located in Group 15. That means that there are 3 electrons that have filled the 2p sublevel, out of a possible 6.

Therefore, our electron configuration is 1s²2s²2p³

2p³ (Shorthand Config)