You have the following equations:
2S (s) + 30 2 (g) - 250 3 (g), A H = -792 kJ
25 (s) + 20 2 (g) → 250 2 (g), A H = -
250 2 (g) + O 2 (g) — 250 3 (g), A H =
U
LL
>
$
What is the missing AH?
>
0 +198 kJ
0-198 kJ
"
i
O
0-594 kJ
1
!
+792 kJ

Gallium melts near room temperature and has one of the largest  liquid  ranges of any metal, so it has found use in high temperature thermometers.

Answer(d) unstable compounds that convert to acetals in the presence of alcohol and an acid; (b) semiacetals produced by alcohol subtraction from ketone;

Answerchemical;

Small amounts of matter are converted intolarge amounts of energy occurs in both fusion and fission reactions. they are nuclear reactions where a change in the identity or characteristics of an atomic nucleus results when it is bombarded with an energetic particle, as in fission, fusion, or radioactive decay.