Fair enough, but you'll have to tell us the volume of the bar first.
Answer:
Explanation:
im sorry if this doesn't help but i think its A
The beginning of the Phanerozoic is marked by the development of hard body parts, such as shells and bones.
Answer: Copper and oxygen
Explanation:
Copper and oxygen shares the ionic bond. As we know that ionic bond is the most strongest bond. Here is the order:
Hydrogen bond< Metallic bond< Ionic bond.
That means order in terms of increasing bond strength is :
Hydrogen and hydrogen< Copper and copper< Copper and oxygen.
