Answer:
Significant hydrogen bonding is possible in
Explanation:
- Hydrogen bonding takes place between an electronegative atom (O, N and F) and a H atom attached to those electronegative atoms.
- Lewis structure reveals that H atom attached to N in .
- In all other compounds no such H atom is present attached to O or N or F.
- Hence significant hydrogen bonding is possible only in
- Lewis structures are given below.
Spiders do not eat, they drink blood from insects using two small (well, depending on the size of spider) fangs that they puncture the prey with. Hope i helped! :)
Answer:
D
Explanation:
The cell is the basic structural, functional and biological unit of all known living organisms. Cells are the smallest unit of life that is classified as a living thing, and are often called the "building blocks of life.
First you need to calculate the molar mass of H2O. To do that, look at the periodic table and add up the AMUs (atomic mass units)
H = 1.01
O = 16.0
1.01 • 2 + 16.0 = 18.02
Next, use stoichiometry to convert grams into moles. To do that, divide 814.504g by the number of grams in one mole of H2O.
814.504 ÷ 18.02 = 45.2 moles
There are 45.2 moles in 814.504 grams of H2O.