Whenever electrons are shared or transferred between atoms there is a chemical reaction.
The electrons that are being transferred between atoms (two or more) create new bonds, which enable the production of a new substance. This process is then known as a chemical reaction.
Answer:
Temperature of boiling water cannot be measured by a Clinical thermometer The reason behind this is that the range of clinical thermometer varies between only 35° C to 42° C.
Answer:
Nitrogen, 
Explanation:
Hello,
This is a clear example of what the ideal gas equation is used for, thus, from its mathematical definition:

One can spell it out in terms of mass and molar mass:

Now, solving for the molecular mass,
:

Now, by taking into account that the gas is diatomic, the matching gas turns out to be nitrogen.
Best regards.
Answer:
Prevent any European country from growing much stronger than its neighbors.
Explanation:
It is called the scientific method