Mg2 + 2HCI(aq) → MgCI2(g) + H\(_{...
Mg2 + 2HCI(aq) → MgCI2(g) + H2(g).
From the equation above what mass of hydrogen would be produced if 12.0 g of magnesium reacted completely with dilute hydrochloric acid? (H = 1, Mg = 24)
1.0g
2.0g
6.0g
12.0g
24.0g
Correct answer is A
Mg2 + 2HCI(aq) → MgCI2(g) + H2(g).
24g Mg reacts with 2g H
1g Mg = 224g H
12g Mg = 224×12g H
= 1g H.
How many isotopes has hydrogen? ...
Which of the following is an example of an endothermic reaction? ...
The green colour solution of an Fe2 salt changes to a brown solution of an Fe3+ salt by ...
Which of the following is a unique property of water compared to other liquids? ...
What is the chemical symbol for Actinium? ...
Which compound will have the lowest boiling point? ...
Sulphur has an oxidation number of +4 in ...
NaCI(s) + H2SO4(I) → HCI(g) + NaHSO4(s). In the reaction above, H2SO4 behaves as?...