M0st scientific kn0wledge is the result of carefully planned investigati0ns c0nducted by trained scientists.their meth0d requires h0nesty, the ability to withh0ld decisi0ns until all evidence is on hand,and the desire f0r truth.these statements can be underst0od better if a familiar example is given.
1.identify the problem you want to s0lve.break…[Read more]

You will begin your study of chemistry by reb0gnizing its relevance in your life as a student.as you progress in your studies.you will learn to appreciate chemistry as one of humankind’s greatest intellectual achievements.this less0n intr0duces you to its scope and to s0me of its c0mtributi0ns in your daily life.
it is our aim that the study of…[Read more]

So far we have only studied simple mixtures.in our natural environment,substances usually in the sense that there are several compnents.
for example.air is a mixture of gases-oxygen,nitrogen,arg0n,and the other gases that are usually released by the activities of human beings or are products of technology.if such gases are present in am0unts that…[Read more]

Honestly, I miss this site and the nice people became friends here. How nice if today is yesterday so we can still connect each other and feel what we fee and see what we through our nice and sincere words.

I been away for almost a year here after this site paid no more to writers. Well, we cannot blame the site management for it is not easy to…[Read more]