Iron(II) Hydroxide Composition Questions

The video tutorial explains how to determine the number of atoms in iron II hydroxide (FeOH2). It begins by introducing the compound and its ionic charges, explaining that hydroxide has a one-minus charge, requiring iron to have a two-plus charge. The tutorial then counts the atoms in FeOH2, identifying one iron atom, two oxygen atoms, and two hydrogen atoms, resulting in a total of five atoms. The video concludes with a summary of the atom count.

What is the charge of the hydroxide ion in Iron(II) Hydroxide?

• One minus

• Two plus

• One plus

• Two minus

How many iron atoms are present in a molecule of Iron(II) Hydroxide?

• One

• Two

• Three

• Four

How many oxygen atoms are there in Iron(II) Hydroxide?

• One

• Two

• Four

• Three

What is the total number of hydrogen atoms in Iron(II) Hydroxide?

• Four

• Three

• Two

• One

What is the total number of atoms in a molecule of Iron(II) Hydroxide?

• Three

• Four

• Five

• Six