Answer:
exothermic reaction
Explanation:
I think this because this is an example of an exothermic reaction is the chemical reaction between sodium and chlorine, which results in the formation of sodium chloride (also known as common salt)
Answer:
2Mg (s) + 
(g) ---> 2MgO (s)
Explanation:
Conventional volcanoes are known to erupt after pressure builds up from new magma flowing into the magma chambers that lie below the vents on the Earth's surface.
Pressure varies in the atmosphere because air molecules are being pulled down towards the center of the earth-hope this helps!
