<span>5.506x10^23 atoms
First, determine the molar mass of Calcium Nitrate [ Ca(NO3)2 ]. Look up the atomic weights of the involved elements.
Atomic weight calcium = 40.078
Atomic weight nitrogen = 14.0067
Atomic weight oxygen = 15.999
Molar mass Ca(NO3)2 = 40.078 + 2 * 14.0067 + 6 * 15.999 = 164.0854 g/mol
Determine the number of moles of Ca(NO3)2.
16.67 g / 164.0854 g/mol = 0.101593439 mol
Now multiply by the number of atoms in Ca(NO3)2 which is 9. So
9 * 0.101593439 = 0.914340947
Finally, multiply by avogadro's number. Giving:
0.914340947 * 6.0221409x10^23 = 5.50629001x10^23
Round the result to 4 significant figures, giving 5.506x10^23 atoms.</span>
If the there is enough acid rain to spread in the water then it will become more acidic, making an impact on any<span> plants and animals that </span>live<span> in the water.</span>
The presented elements contain anions (negative ions) and are non-metals. Non-metals are always going to have a negative charge
Batteries <span>stop working due to the chemical compound between two poles running out. Also part of metal used for negative pole solved every time battery was used.</span>
