<span>Avogadro's number
represents the number of units in one mole of any substance. This has the value
of 6.022 x 10^23 units / mole. This number can be used to convert the number of
atoms or molecules into number of moles.
</span><span>7.3x10^-3 g of CaSO4 ( 1 mol / 136.14 g ) = 5.36x10^6-5 moles
</span> 5.36x10^6-5 moles ( 6.022 x 10^23 formula units / mole ) = 3.23x10^19 formula units
228 packages
8000 / 35 = 228.57 —> You want to round down in this context, because 229 packages would exceed the weight limit.
Answer:
In the Bohr model, electrons can exist only in certain energy levels surrounding the atom.
When electrons jump from a higher energy level to a lower one, they emit light at a wavelength that corresponds to the energy difference between the levels.
The energy levels in each atom are unique.
Explanation:
Be sure to put in your own words.
Edge 2020
~theLocoCoco
Answer:
I'm not a chemist nerd, but because hcl is an aqueous acid and is in water, and cl is bonded to hydrogen in water, I would say D: hydrogen bonding.
Cocaine selectively blocks sodium channels which is the mechanism that leads to local anesthetic effects.
Voltage gated sodium channels play very important roles in the body as they are responsible for action initiation and propagation in excitable cells, such as nerves, muscles and neuroendocrine cells. Like other sodium ion channels blockers such as lidocaine, Cocaine selectively blocks sodium ion channels which denies entry of sodium ions in the cell, thus leading to local anesthetic effects.