The energy output from a chemical reaction is dependent on the amount of chemicals used.The table shows this relationship.What i
s a reasonable amount of energy output from the reaction of 32 moles of the chemicals?
A) 77 joules
B) 92joules
C) 110joules
D) 128joules
1 answer:
Answer:
D
Step-by-step explanation:
You can see from the table that joules out = 4x moles in
for 32 moles 32 * 4 = 128 joules
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Answer:
175 (b)
Step-by-step explanation:
25*14=350
350/2=175
Answer:
Step-by-step explanation:
1) x-y=18
2) 2x/7-y/4=6
from 1) x=18+y substituting in 2)
2(18+y)/7-y/4=6
36/7+y(2/7-1/4)=6
y=(6-36/7)/(2/7-1/4)
y=(6/7)/(1/28)
y=24
x=18+y=18+24
x=42
