Answer:
The number of mole is 1.852moles
Explanation:
To calculate the number of mole, using the formula
n = m/Mm
n - number of mole
m - number of mass
Mm - number of molar mass
The molar mass of Re = 186.207
Then, n = 345g/ 186.207g/mol
n = 1.852mol
All organisms use the same genetic code. Living organisms are made of the other same components as all other matter, organisms that inhibit the earth at any one time. They are all assembled from a nucleic acid code. Hope that helped!
Answer:
Two electrons
Explanation:
According to the octet rule, atoms must bond to each other, sharing electrons among themselves in an attempt to complete their valence shell (last layer of the electrosphere). In other words, an atom becomes stable when it has 8 electrons in its valence shell.
Oxygen atoms have six electrons in their valence shell, so to achieve the stability suggested by the octet rule (eight electrons), these atoms share two electrons, forming one oxygen gas (O₂) molecule.
Solar wind is a series of charges particles blasting off the sun as it fuses hydrogen and helium. This is extremely dangerous to humans and the earths magnetic field protects us from it.
He concluded that all tissues are made up of cells.
