皮皮学，免费搜题
登录
搜题
【单选题】
The ascent of the mountain is ______, but anyone who makes it to the top is rewarded by a spectacular view.A.
helpful
B.
automatic
C.
unique
D.
unpleasant
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】【图片】The plot shows Clausius-Clapeyron plot for noble gases. It shows that heat of vaporization are related in the following manner:
A.
Ar > Kr > Xe
B.
Xe > Kr > Ar
C.
Xe > Ar > Kr
D.
Xe = Kr > Ar
【简答题】Non-metallic elements are held together by bonding or exist as separate atoms(the noble gases).
【判断题】The noble gases are exceptionally resistant to chemical reaction, this lack of reactivity is a reflection of their election structure.
A.
正确
B.
错误
【简答题】The following statement ofinert gases is right except______ A) Inert gases are also called noble gases B) Inert gases are mostlyinactive C) Inert gases do not get involved in compounds with oth...
相关题目：
【简答题】Non-metallic elements are held together by bonding or exist as separate atoms(the noble gases).