# Problem: One of the key components in the manufacture of Portland cement is, Ca3SiO5, a compound that is obtained by firing the reactants in a kiln at 1400 - 1500 C. Assign an oxidation state to each element in this compound.What is the oxidation state of Si in Ca3SiO5?

###### FREE Expert Solution

We’re being asked to determine the oxidation state of Si in Ca3SiO5.

The rules for oxidation states are as follows:

A. General Rules:

1. For an atom in its elemental form (Zn, Cl2, C(graphite), etc.)    O.S. = 0

2. For an ion (Li+, Al3+, etc.)                                                       O.S. = charge

B. Specific Rules:

1. Group 1A              O.S. = +1

2. Group 2A              O.S. = +2

3. Hydrogen              O.S. = +1, with nonmetals

O.S. = –1 with metals and boron

4. Fluorine                 O.S. = –1

5. Oxygen                  O.S. = –1 in peroxides (X2O2, X = Group 1A)

O.S. = –1/2 in superoxides (XO2, X = Group 1A)

O.S. = –2 in other compounds

6. Group 7A               O.S. = –1 (except when bonded to O)

80% (312 ratings)
###### Problem Details

One of the key components in the manufacture of Portland cement is, Ca3SiO5, a compound that is obtained by firing the reactants in a kiln at 1400 - 1500 C. Assign an oxidation state to each element in this compound.

What is the oxidation state of Si in Ca3SiO5?

Frequently Asked Questions

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Calculate Oxidation Numbers concept. You can view video lessons to learn Calculate Oxidation Numbers Or if you need more Calculate Oxidation Numbers practice, you can also practice Calculate Oxidation Numbers practice problems .