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Lelechka [254]
3 years ago
6

I need help please my teaching is going to go crazy if I didn’t do it

Chemistry
1 answer:
victus00 [196]3 years ago
4 0

Answer:

No One is going to answer all this because it hard to type it all in her. its easy to search it up

Explanation:

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Consultați sistemul periodic și aranjați în ordinea creșterii caracterului nemetalic următoarele elemente:
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The molecules of DNA produced in replication are...
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A) Identical

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What type of change is the following: striking a match chemical, or physical?
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3 years ago
Calculate the mass, in grams, of 122 atoms of iron, Fe (1 mol of Fe has a mass of 55.85 g).
vitfil [10]

Answer:

6813.7g

Explanation:

Calculate the mass

Let x be the mass

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1 mol =55.85g

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we have x= 122•55.85g=6813.7g

7 0
2 years ago
List emergency equipment, those are available in the laboratory?
mestny [16]

Answer:

Hands-free eyewash stations, sand bucket, fire blankets, fire extinguishers, fire alarm system and first aid kit.

Explanation:

Working in laboratories has many risks, therefore, preventive measures that should be incorporated to avoid the occurrence of any laboratory accidents.

Some of the important emergency equipment that should be available in laboratories are: hands-free eyewash stations, sand bucket, fire blankets, fire extinguishers, fire alarm system, chemical storage cabinet, first aid kits and fume hood.

Some of the personal protective equipment include lab coats, goggles, safety gloves and face shield.

7 0
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