ocelli

This page lists questions and answers that were posted by visitors named ocelli.

Questions

The following questions were asked by visitors named ocelli.

How can variation in hardness of water be determined in a laboratory? How is the using of sodium carbonate disadvantageous?

Answers

The following answers were posted by visitors named ocelli.

13/6-11/15x=O.15 13/6-11/15x=15/100 13/6-13/16-11/15x=15/100-13/6