(d) Write the molecular formulae of the following compounds: 1. Iron [II] Chloride
2. Aluminium oxide
3. Calcium hydroxide
show with explanation

1- FECI2
2- AI2O3
3-Ca(OH)2
Calcium hydroxide (traditionally called slaked lime) is an inorganic compound with the chemical formula Ca(OH)2. It is a colorless crystal or white powder and is produced when quicklime (calcium oxide) is mixed, or slaked with water.

The independent variable is the type of music.the dependent variable is the pulse rate.the intervening variable is the age of the subject.if the mother does not like rock, her pulse is likely to not increase.the same might be true for the sister.the friend may like rap and gets excited.to establish cause/effect relationship, all of the subjects must be consistent.hope i .

Fine out you self hx