Explanation:
1=2 atoms
2=4-n where n is the number of bonds to that carbon
3=10
4=2
<span>2AlBr</span>₃<span>+ 3Cl</span>₂<span>--> 2AlCl</span>₃<span>+3Br</span>₂<span> </span>
Start of the food chain, one of the keys to survival and, one of the most natural beauties
Let us assume that there is a 100g sample present. The respective mass of each element will then be:
C: 74 g
H: 7.4 g
N: 8.6 g
O: 10 g
Now, we divide each constituent's mass by its Mr to obtain the moles of each
C: (74 / 12) = 6.17
H: (7.4 / 1) = 7.4
N: (8.6 / 14) = 0.61
O: (10 / 16) = 0.625
Dividing by the smallest number:
C: 10
H: 12
N: 1
O: 1
Thus, the empirical formula is
C10H12NO
Hey there!
Conduction is the transfer of heat via physical contact of solids.
A) The fireplace heating the room does not physically touch any part of the room. It is transferring its weight through waves, or radiation, not physical touch. Incorrect
B) The heat from the stove is transferring to the frying pan because the frying pan is placed on the hot stove. It is transferring to the pan through physical contact, so this is conduction. Correct
C) This may appear to be correct, but this is actually an example of convection, or the transfer of heat via gasses and liquids. The pan was heated up by the stove, which was transferred into the water. As it is a liquid, it is convection. Incorrect
D) Soup is not necessarily considered a liquid; convection usually refers to water vapor and water itself, so this would be an example of conduction, as the spoon and soup are touching. Correct
E) The Sun is not touching the atmosphere; it is transferring heat via waves or radiation. Incorrect
Therefore, our correct answers are B and D.
I hope this helps!
