QUESTION 8 Which of the following is the formation reaction for Na2CO3 (s)? A. 2

Question

QUESTION 8 Which of the following is the formation reaction for Na2CO3 (s)? A. 2 Na(s) + C(s, graphite) + 3 O(g) Na2CO3(s) B. 2 Na(g) + C(g) + 1.5 02(g) Na2CO3(s) C. 2 Na(s) + C(s, graphite) + 1.5 02(g) Na2CO3(s) D. Na2(s) + C(s, graphite) + 1.502(g) Na2CO3(s) E. 4 Na(s) + 2 C(s, graphite) + 32(g) 2 Na2CO3(s) QUESTION 9 Which of the following is the formation reaction for CH30H)? A. 2 Cls, graphite) + 4 H2(g) + O2(g) 2 CH3OH(1) B. 1/2 C2(s, graphite) + 2 H2(g) + 1 /2 O2(g) CH3OH(l) C. C2(s, graphite) + 4 H2(g) + O2(g) 2 CH3OH(1) D. Cls, graphite) + 4 H(g) + O(g) CH3OH(I) E. C(s, graphite) + 2 H2(g) + 1 /202(g) CH3OH(1)

Explanation / Answer

8)
A is wrong because O2 is state in which Oxygen exist
B is wrong because standard state of Carbon is graphite
C is correct
D is wrong because standard state if sodium is Na
E is wrong because only one mol of product should form
Answer: C

9)
A is wrong because only one mol of product should form
B is wrong because standard state if Carbon is C and not C2
C is wrong because standard state if Carbon is C and not C2
D is wrong because O2 is state in which Oxygen exist
E is correct

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