Ab + c → ac + b is the general equation for which one of the following types of chemical reactions?

How will the emission of an alpha particle affect the atomic number of an atom

Which process does not require the presence of a physical substance in order to transfer heat? air in the atmosphere is heated by the ground. this warm air then rises, and cooler air falls. this is an example of what type of process? how is conduction different from radiation?

Give one example of a pure (exact) number and of an estimated (measured) number.