If 6.5g of magnesium ribbon reacts completely with Hydroc...
If 6.5g of magnesium ribbon reacts completely with Hydrochloric acid, how many grams of hydrogen gas would be liberated?
Mg(s) + 2 HCl(aq) --> MgCl 2(aq) + H 2(g)
[ H = 1.0, Mg = 24.0 ]
0.54g
0.70g
1.08g
1.40g
Correct answer is A
24g of Mg will liberate 2g of H
: 6.5g of Mg will liberate Xg of H
= ( 6.5 X 2 ) / 24
= 0.5416g of Hygrogen ( H )
CO(g) + H\(_2\) O\(_{(g)}\) → CO\(_{2(g)}\) + H\(_{2(g)}\) Calculate the standard heat change ...
Which of the following halogens is the most reactive?...
When air is passed through alkaline pyrogallol and then over quicklime, the only gases left are? ...
When heat is absorbed during a chemical reaction, the reaction is said to be ...
The following compounds are hydrocarbons except ...
Aluminium is used in the manufacture or aircraft because it ...