KMnO4 has the incorrect set of oxidation numbers. Whenever there is an alkali metal, it has an oxidation number of +1. As you can see, K is said to have an oxidation number of +2, so it is incorrect.
Can you please explain what the BTB is so I may help ya?
Answer:
the change in the system internal energy is 20 J
Explanation:
The computation of the change in the system internal energy is as follows:
Since the volume remains constant so the work done would be zero
Now the change in the internal energy is
= Heat given to system - work done
= 20 J - 0
= 20 J
hence, the change in the system internal energy is 20 J
The same is to be considered
<u>Answer:</u>
0.800 moles of will be produced when 0.400 moles of react and are decomposed
<u>Explanation:</u>
The decomposition of (aq) ------> 2C2H5OH (aq) + 2CO2
¬moles of = 0.400 moles
Moles of produced will be calculated by the formula,
Moles of CO2 = 0.400 moles of
Substituting the values,
Moles of = = 0.400*2 = 0.800 moles
Therefore, 0.800 moles of will be produced when 0.400 moles of react and are decomposed
Answer:
1.5 m
Explanation:
Step 1: Given data
Maximum speed recorded for a giant tortoise (s): 0.11 m/s
Time elapsed (t): 6.0 h
Step 2: Convert "s" to mi/h
We will use the following conversion factors:
- 1 mi = 1609.34 m
- 1 h = 3,600 s
Step 3: Calculate the distance traveled (d) by the giant tortoise
We will use the following expression.
s = d/t
d = s × t
d = 0.25 m/h × 6.0 h
d = 1.5 m