已知在标准状态下,反应 N 2 (g)+2O 2 (g) → 2NO 2 (g), Δ r H m θ =67.8 KJ/mol ,则 NO 2 ( g )的标准生成焓为( ) KJ/mol 。 已知在标准状态下,反应 N 2 (g)+2O 2 (g) → 2NO 2 (g), Δ r H m θ =67.8 KJ/mol ,则 NO 2 ( g )的标准生成焓为( ) KJ/mol 。
【单选题】Read the paragraph from the section "Raising Funds For Cleanups." Now the group is holding events to raise funds. The money will go to beach cleanups. It will also go to groups such as Oceana and Worl...
A.
How many people go to events held by the group Iwantmyoceanback?
B.
What is Florida doing to fight pollution in its oceans and beaches?
C.
Which other groups do work like the one started by Sasha Olsen?
D.
Where is the town of Bal Harbour located in Florida?