why bottles of Hazardous chemicals or solvent are available in
round shaped only?
What are the products formed after cod analysis?
What forms the basis for colorimetric determination?
What is the difference between fractionation and distillation?
What important property of water makes it possible for plants to grow under it and for animals to live it ?
What is positive testing in relation to chemistry? For example, the sentence reads "Sample solutions are solutions known to contain one of each of the following ions, silver ion, Ag+(aq), barium ion, Ba2+(aq), and iron (III) ion, Fe3+(aq). Testing solutions are the solutions containing a polyatomic ion that can react with one of the metal ions to give a positive test." I am then asked to define what a "positive test" is. I am currently a student who is pretty new to chemistry, please try and make your answer as simply as possible. Thanks for the help.
Define Atom ?
What is the min constitutes of haematite ore?
What is the prime constituents of cement?
What is weak acid?
How is electricity generated from water ?
Why is an echo not heard in a small room ?
What is chemistry ?