How many atoms are there in one molecule of the following compounds?
a. silver chloride- AgCl
b. calcium oxide- CaO
c. Magnesium nitride- Mg3N2
d. Aluminium oxide- Al2O3
e. Scandium sulfide- Sc2S3
f. Hydrogen Peroxide- H2O2
add all the numbers in the formula
if there is no number,
a one is understood
A. 1 silver atom and 1 chlorine atom
B. 1 calcium and 1 oxygen
C. 3 Mg and 2 Nitride
D. Aluminum 2 and oxygen 3
E. 2 Sc and 3 sulfide
F. 2H 2O
To determine the number of atoms in a molecule of a compound, we need to look at the chemical formula of the compound and count the number of each type of atom present.
a. Silver chloride (AgCl)
In this compound, there is one silver atom (Ag) and one chlorine atom (Cl). So, there are a total of 2 atoms in one molecule of silver chloride.
b. Calcium oxide (CaO)
In this compound, there is one calcium atom (Ca) and one oxygen atom (O). So, there are a total of 2 atoms in one molecule of calcium oxide.
c. Magnesium nitride (Mg3N2)
In this compound, there are three magnesium atoms (Mg) and two nitrogen atoms (N). So, there are a total of 5 atoms in one molecule of magnesium nitride.
d. Aluminium oxide (Al2O3)
In this compound, there are two aluminum atoms (Al) and three oxygen atoms (O). So, there are a total of 5 atoms in one molecule of aluminum oxide.
e. Scandium sulfide (Sc2S3)
In this compound, there are two scandium atoms (Sc) and three sulfur atoms (S). So, there are a total of 5 atoms in one molecule of scandium sulfide.
f. Hydrogen peroxide (H2O2)
In this compound, there are two hydrogen atoms (H) and two oxygen atoms (O). So, there are a total of 4 atoms in one molecule of hydrogen peroxide.
To summarize:
- Silver chloride (AgCl): 2 atoms
- Calcium oxide (CaO): 2 atoms
- Magnesium nitride (Mg3N2): 5 atoms
- Aluminum oxide (Al2O3): 5 atoms
- Scandium sulfide (Sc2S3): 5 atoms
- Hydrogen peroxide (H2O2): 4 atoms