Answer:
None
Explanation:
Lone pairs of electrons are a set of 2 electrons pair which are not involved in bonding but are present in the outermost shell of the electron.
To accurately get them, we can primarily use the Lewis dot formula. After drawing our bonds, we can still some pairs of electrons which are nonbonding but are present.
Hydrogen atom has one electron. To form the hydrogen gas molecule, each hydrogen atom donates an electron each for sharing via covalent bonding, hence both electrons are used for bonding and we do not have any extra electrons.
Answer:
72.67g of B
Explanation:
The reaction of B₂O₃ to produce boron (B), is:
B₂O₃ → 3/2O₂ + 2B
<em>That means B₂O₃ produce 2 moles of boron</em>
Molar mass of B₂O₃ is 69.62g/mol. 234g of B₂O₃ contains:
234g B₂O₃ ₓ (1mol / 69.62g) = 3.361 moles of B₂O₃.
As 1 mole of B₂O₃ produce 2 moles of B, Moles of B that can be produced from B₂O₃ is:
3.361mol B₂O₃ ₓ 2 = <em>6.722 moles of B</em>.
As molar mass of B is 10.811g/mol. Thus mass of B that can be produced is:
6.722mol B ₓ (10.811g / mol) = <em>72.67g of B</em>
Answer:
kinetic energy is the energy of movement
Explanation:
please mark brainliest just need 4 more
Not completely sure but I think it's
Answer: Local winds affect a smaller area while global winds affect a larger area
Explanation: This is because local winds affect certain areas and global winds go all around the planet
