What is determining factor in the oxidation reduction reaction?
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Why is the percentage of oxygen today the same as it was thousands years ago, even though the whole world inhals it?
What is water gas ?
Explain the Physical change?
Which gas is used, in laboratories etc. for burners ?
Why does a ball bounce ?
Explain the Modern Atomic Theory ?
How is petroleum manufactured?
Explain the Atom?
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.
Why ate shadows longer at the end of the day ?
Which is the hottest part of a flame ?
why in atomic mass electron is not include while proton and neutron include? although electron is a part of atom.