Chemistry, 20.01.2021 07:30 mannablofey23
Question 1: Which of the above electron dot diagrams is WRONG and why?
A) Fluorine F because it is supposed to have 8 Valence electrons
B) Carbon C because it supposed to have 8 valence electrons
C) Nitrogen N because it is supposed to have 6 valence electrons
D) Oxygen O because it is supposed to have 6 Valence electrons
Question 2: How many valence electrons does an atom of Argon have?
A) 8
B) 7
C) 6
D) 5
Question 3: What is the proper value for F in the above table. (Picture of table above..)
A) 28
B) 30
C) 2+
D) 2-
Question 4: What is the proper value for C in the above table. (Use the same picture as the previous question)
A) 28
B) 30
C) 32
D) 65
Answers: 3
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Given the following at 25c calculate delta hf for hcn (g) at 25c. 2nh3 (g) +3o2 (g) + 2ch4 (g) > 2hcn (g) + 6h2o (g) delta h rxn= -870.8 kj. delta hf=-80.3 kj/mol for nh3 (g), -74.6 kj/mol for ch4, and -241.8 kj/mol for h2o (g)
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Question 1: Which of the above electron dot diagrams is WRONG and why?
A) Fluorine F because it is...
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