I believe it is aluminum
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Answer:
I swear this is where you reside, you reside
Please, bae, don't go switching sides, switching sides
Yeah, yeah, yeah, yeah
Ooh-ooh, please don't throw your love away, huh
Plea 6968966
A or be i cant be certain which is correct but it think its one of the lm
1 CH4 (g) + 2 O2 (g) -----> CO2 (g) + 2H2O(l) ΔH= - 890 kJ
1 mol 2 mol
1) If ΔH has minus, it means "release". We need only "release" choices.<span>
2) From reaction
1 mol </span>CH4 (g) "releases" ΔH= - 890 kJ - We do not have this choice.
2 mol O2 (g) "release" ΔH= - 890 kJ, so
1 mol O2 (g) "release" ΔH= - 445 kJ
Correct answer is B.
Well all reactions need energy to start it. The light is the energy that the reaction requires to start it. Sunlight also has no mass in the first place so laws of conservation of mass don't apply to it.
