The first metal used by man was
...The first metal used by man was
iron
copper
gold
bronze
Correct answer is B
No explanation has been provided for this answer.
The acid that is used to remove rust is? ...
CH3COOH(g) → H4(g) + CO2(g) The reaction above is...
The oxide from electric power station is ...
Which of the following mixture of gases is likely to burn in flame ...
If sulphur is dissolved in carbon (IV) sulphide and the solution allowed to evaporat...
The molecules of which gas have the highest speed? ...
CH3COOC2H5(1) + H2O(1) ⇌ CH 3COOH (aq) + C 2H 5OH (aq) The purpose of H+ in the reaction above ...