Ogether in long chains. 18. This model is another way
to show the structure of a
molecule of PVC. Circle the
unit that repeats.

What is the empirical formula of c6h18o3? ch3o c2h5o c2h6o c2h5o5

Phosphorous can form an ion called phosphide, which has the formula p3−. this ion can form an ion called phosphide, which has the formula p3−. this ion properties very similar to those of pforms when a phosphorus atom loses three protonsis called a cationcontains 18 electrons

What relationship exists between an enzyme and a catalyst?