Each layer has a unique chemical composition, physical state, and can impact life on earths surface. Movement in the mantle caused by variations in heat from the core, causes the plates to shift, which can cause earthquakes and volcanic eruption‘s.
Answer:
it means 2 oxygen atoms in the molecule
Explanation:
Halogens and Alkali react aggressively.
Explanation:
divide the objects weight by the acceleration of gravity to find the mass
40. Because sodium chloride is NaCl
