Answer:
The mass of 8.250 moles of Cu2O is 1180.5g
Explanation:
HOW TO CALCULATE MASS OF A SUBSTANCE:
- The mass of a substance can be calculated by multiplying the number of moles in the substance by its molar mass as follows:
Mass (g) = no. of moles (mol) × molar mass (g/mol)
- Molar mass of copper (I) oxide (Cu2O) = 63.5(2) + 16 = 143.09 g/mol
Mass of Cu2O = 8.250 mol × 143.09 g/mol
Mass of Cu2O = 1180.5 g
Therefore, the mass of 8.250 moles of Cu2O is 1180.5 g.
You can put it in a very strong magnetic field.
Answer:
One positve charge
Explanation:
A neural atom is one that has equal number of protons and electrons. The protons are the positively charged subatomic particles in an atom. The electrons are the negatively charged particles in an atom.
For an atom to be charged during bond formation, it must lose or gain electrons. The number of electrons lost or gained conditions the charge on the ions it forms.
If in a neutral atom, it loses an electron, we see that the number of protons will now be more than the number of electrons by the 1 electron it lost. The charge will then be +1.
If a neutral atom gains an electron, the number of electrons will be more than that of the protons by 1. The charge will then be -1.
