2 Chemistry Equations?

Question

24. balance the equation Sr(s) + H2O(l) --> Sr(OH)2(aq) + H2(g).

A. Sr(s) +2H2O(l) --> Sr(OH)2(aq) + H2(g)
B. Sr(s) +2H2O(l) --> Sr(OH)2(aq) + 2H2(g)
C. Sr(s) +3H2O(l) --> Sr(OH)2(aq) + 3H2(g)
D. it is already balanced

25. lithium metal reacts with ammonia gas to form hydrogen gas and crystals of lithium amide, LiNH2. write a balanced chemical equation for this reaction, and classify the reaction as one of the five major types.

A. 2Li(s) + 2NH3(g --> 2LiNH2(s) +H2(g); decomposition
B. Li(s) + 2NH3(g) --> LiNH2(s) + 4H(g) ; synthesis
C. 2Li(s) + 2NH3(g) --> 2LiNH2(s) +H2(g) ; single displacment
D. 4Li(s) + 4NH3(g) --> 4LiNH2(s) + H2(g) ; double

Answer 1

24. A

25. C

Answer 2

Hi! the answer for No.24 is: option A.
the answer for NO.25 is option A.