ok so this was really confusing, but i think i know the answer. D. ...hairy and ancient hermit crabs and swift, darting minnows and sometimes a
crumbling sand dollar.
Answer:
Given:
Mass = 2.56 kg
Volume = 0.820 L
To Find:
Density
Explanation:
Formula:
Substituting value of mass & volume in the formula:
Persent yield=actual/theretical*100%=220g/275.6g*100%=79.83%
In one experiment, you do not have the metal oxalate product
as dry as possible. This might affect the pyrolysis procedure by maybe the
water will react with the compound at very high temp; the initial weight of the
sample is already incorrect that might cause error in the further calculations.
Answer:
There are 12 sigma bonds and 3 pi bonds in benzene
Explanation:
- Molecular formula of benzene is .
- Here six carbon atoms are joined together through alternative single and double bond forming a six membered cyclic ring.
- Six hydrogen atoms are attached to six carbon atoms through a single bond.
- A single bond represents a sigma bond. A double bond consists of a sigma bond and a pi bond.
- In the Lewis structure of benzene, there are three C-C single bonds, three C=C double bonds and six C-H single bond.
- Hence there are 12 sigma bonds and 3 pi bonds in benzene
- Lewis structure of benzene is given below