Answer:
In 1859, European rabbits (Oryctolagus cuniculus) were introduced into the Australian wild so that they could be hunted. ... These rabbits are extremely adaptive, which has played a role in their spread across the Australian continent. All the rabbits need is soil that is fit to burrow and short grasses to graze on.
Answer: A. Salt in the Dead Sea is saltier
The mass of methane is 1.117×10^17 g.
Given,
∆H°rxn =-802kj/mol
1Ej = 10^18 j =10^-3×10^18 kj
802kj of energy is released by 1 mol of CH4.
1kj of energy is released by 1/802 mol of CH4.
5600Ej of energy is released= 5600/802 mol of CH4
5600×10^18×10^-3 kj of energy is released
=5600 × 10^18 × 10^-3 /802 mol
=6.982 ×10^15 mol of CH4
We know,
the molecular mass of CH4 = 16 g
1 mol of CH4 = 16g
6.982×10^15 mol = 16 × 6.982 × 10^15 = 1.117×10^17 g
Hence, the mass of methane is 1.117×10^17 g.
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