If the following equation is properly balanced, what are the coefficients in front of each compound? Fe2O4 + SO2 → FeS + O2 1. 1; 2; 1; 2 2. 2; 2; 2; 5 3. 2; 1; 1; 4 4. 1; 2; 1; 4 5. 1; 2; 2; 4 6. 2; 2; 1; 5 7. 2; 2; 1; 4 8. 1; 1; 1; 1 9. 2; 1; 2; 4

1, 2, 2 ,4

After you balance it out, you get the coefficients of 1, 2, 2 and 4.

in theory, limestone is composed principally of the compound calcium carbonate - caco3, but in reality this compound is deposited in conditions involving a number of other compounds as impurities so it ends up being a mixture of many compounds.

hope this : -)

tony (lordcaos066)