1:1
Fe has a charge of 2+ while O has a charge of 2-.
Formula: FeO
Answer:
2.02 × 10²³ atoms
Explanation:
Step 1: Calculate the moles corresponding to 37.8 g of cadmium
To convert mass to moles, we need a conversion factor: the molar mass. The molar mass of cadmium is 112.41 g/mol.
37.8 g × 1 mol/112.41 g = 0.336 mol
Step 2: Calculate the number of atoms in 0.336 moles of cadmium
To convert moles to atoms, we need a conversion factor: Avogadro's number. In 1 mole of atoms of cadmium, there are 6.02 × 10²³ atoms of cadmium.
0.336 mol × 6.02 × 10²³ atoms/1 mol = 2.02 × 10²³ atoms
<span>The noble gases are a group of chemical elements that make up Group 18
on the periodic table. These gases all have similar properties under
standard conditions: they are all odorless, colorless, monatomic gases
with very low chemical reactivity.</span>
