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sukhopar [10]
3 years ago
12

How many liters of P, are in 3.5x1022 molecules at STP?

Chemistry
1 answer:
suter [353]3 years ago
4 0

Answer: they giving you some hard question

Explanation:

i dont know  know what the answer is do you have any answer options

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Solid iron combines with oxygen gas to form solid iron(III) oxide. Which of the following equations best describes this reaction
Alexus [3.1K]

Answer:

B.  4 Fe + 3 0₂---> 2 Fe₂O3        

Explanation:

(A) Ir + O₂--> IrO₂                                 No:  Ir is iridium

(B) 4 Fe + 3 0₂---> 2 Fe₂O3                Yes:  Fe is iron and O is oxygen,                  and the equation is balanced.

(C) I+ 0₂ ---> 10₂                                  No:  I is iodine

(D) 3 Ir + 0₂ -> 6 Ir₂03                         No:  I is iodine

3 0
1 year ago
How does the fossil record suggest common ancestry?
Jobisdone [24]

Answer:

  • the first one is: Fossils provide evidence that organisms from the past are not the same as those found today, and demonstrate a progression of evolution. Scientists date and categorize fossils to determine when the organisms lived relative to each other.
6 0
3 years ago
PLEASE HELP REALLY IMPORTANT
USPshnik [31]
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Identify the type of plant tissue that brings in gases:
artcher [175]

Answer:

epidermal

Explanation:

6 0
3 years ago
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Explain what is wrong with the following structure.
Lelu [443]

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oxygen should be the central atom in the middle

Explanation:

hydrogens always go on the outside

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