What are the possible oxidation numbers of an element if ...
What are the possible oxidation numbers of an element if its atomic number is 17?
-1 and 7
-1 and 6
-3 and 5
-2 and 6
Correct answer is A
17 = 2, 8, 7
Hydrogenation of butene yields ...
A particle that contains 9 protons, 10 neutrons and 10 electrons is a ...
The type of chemical bond that exists between potassium and oxygen in potassium oxide is ...
The bond formed between H2O and H+ to form the hydroxonium H3O+ is...
Which of the following compounds has the same empirical formula as benzene? ...