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Author Question: How many atoms of oxygen are in 5.00 g of ethanol, C2H6O? A) 6.52 1022 B) 6 C) 5.52 1024 D) ... (Read 96 times)

skymedlock

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  • Posts: 561
on: Aug 27, 2018
How many atoms of oxygen are in 5.00 g of ethanol, C2H6O?
 
  A) 6.52  1022
  B) 6
  C) 5.52  1024
  D) 6.02  1023

Question 2

How many liters of oxygen are needed to exactly react with 19.8 g of methane at STP?
 
  CH4(g) + 2 O2(g)  CO2(g) + 2 H2O(l)
 
  A) 13.9 L
  B) 27.8 L
  C) 55.5 L
  D) 60.5 L

Question 3

Which of the following anions has the largest number of oxygen atoms per formula unit?
 
  A) carbonate
  B) dichromate
  C) hydrogen phosphate
  D) perchlorate


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gcook

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Reply #1 on: Aug 27, 2018
Answer to Question 1

A

Answer to Question 2

C

Answer to Question 3

B


skymedlock

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Reply 2 on: Aug 27, 2018
Gracias!

cici

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Reply 3 on: Yesterday
Wow, this really help

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