Answer:
I think its iron(II) oxide
Explanation:
The substance is black but when it's mixed with water it turns green solution so when mixed with sodium Hydroxide it turns green
Answer:
ELECTRONEGATIVITY is the tendency of an atom in the molecule to attract the bonded pair of electrons .
Explanation:
it might help you!!!!!!
The chemical reaction is the oxidation of calcium metal by molecular oxygen. During the reaction, calcium metal is oxidized, that is, loses electrons and oxygen is reduced, that is gains electrons.
During the reaction, the calcium atom donate two electrons in order to become stable and the oxygen atom accepts these two electrons. Therefore, during the reaction, EACH OXYGEN ATOM GAINS TWO ELECTRONS.
Answer:
so your body can take all the nutrients from the food and use it for your body to work
