Answer:
B
Explanation:
B, H2O + Na The elements toward the bottom left corner of the periodic table are the metals that are the most active in the sense of being the most reactive. Lithium, sodium, and potassium all react with water,
Nothing in particular determines the name of an element, it could range from who discovered it to where it was discovered!
X=107 because the sides of a hexagon must add up to 720
Group 8 elements. They are unreactive and stable
Pretty sure it’s Mixture if I’m not wrong
