How many atoms of oxygen are in one formula unit of al2(so4)3? 4 6 7 12

what is the name of the compound cr2(co3)3?

which of the following contains both ionic and covalent bonding?

naclo
no2
febr3
hi

1) aluminium sulfate has 12 atoms of oxygen (4 · 3 = 12).
2) name of the compound is chromium(III) carbonate. Chromium has oxidation number +3 and carbonate has -2.
3) NaClO contains both ionic and covalent bonding, ionic bond is between sodium and chlorine and covalent bond is between chlorine and oxygen.

The answer is b metal denting

For cyclohexane compounds drawn in a chair conformation:   -axial bonds are vertical  -equatorial bonds are parallel to two bonds within the ring.  thus, as i assume the chair conformation is drawn:   -the x group is in an axial position, as are the five other vertical bonds.  -three axial bonds are on the top face of the ring  -the other three axial bonds are on the bottom face  the position of the second substituent on each ring carbon is equatorial.  gauche groups must be on an adjacent carbon such as carbon 6 and carbon 2, and also gauche groups are rotated by 60 degrees relative to each other.  drawing the newman projections for c1–c2 and c1–c6 aids in visualizing the groups that are gauche to the y group on c1.  click this link and watch some academic videos that may you more understand the topic