Answer:
Explanation:
Well, obviously a molecule with polar bonds can be polar in itself. It's like saying I am an atheltic person who can just reach the basketball rim with my head and also I can dunk.
But if the question is how can a molecule that in non-polar have polar bonds, well, its because the polar bonds' dipole cancels each other out. It's like a tight rope. If a person pulls in one direction, it intuitively, the rope would go in that direction. However, if a person pulls in the other direction with the same amount of force, the rope stays still. This is the same case. Although molecules can have different electronegativities, the pull of electrons in one direction is cancelled out by a pull in the opposite direction, making the net dipole 0.
This is common for main VSERP shaped molecules like linear, trigonal planar, tetrahedral, trigonal bipyramidal, and octahedral.
Quartz has the formula SiO2
From the periodic table:
mass of oxygen = 16 grams
mass of silicon = 28.0855 grams
Mass of one mole of quarts = 28.0855 + 2(16) = 60.0855 grams
number of moles = mass / molar mass
number of moles = 1.6 / 60.0855 = 0.0266 moles
Each mole of quartz contains Avogadro's number of atoms.
Therefore:
number of atoms in 1.6 g = 1.6 x 6.02 x 10^23 = 1.603 x 10^22 atoms
Answer:
B: Covalent Bond
Explanation:
A covalent bond is the sharing of electron pairs between atoms.
Whoever gave u this homework, doesnt really understand the concept
Answer:
Halogens
Explanation:
All the elements in Group 17 on the periodic table are classified as halogens. The members of this group are:
- Fluorine
- Chlorine
- Bromine
- Iodine
- Astatine
They are also known as the group VIIA
Their general outer energy level structure is ns² np⁵
- The first four members of the group are common. Fluorine is the most reactive non-metal and iodine is less reactive.
- Due to lack of one electron to complete their outermost shell, they are good oxidizing agents and are univalent.
