(4) Zirconium
This element is often used in the chemical production field, and as implants due to its high chemical resistance and stability.
All of these are compounds except oxygen because a compound is two or more different elements bonded together.
Answer:
I guess 3 to be honest and that's what I think
Answer:
The particle theory is used to explain the properties of solids, liquids and gases. The strength of bonds (attractive forces) between particles is different in all three states.
Explanation:
<span>Petroleum and biomass are burned in combustion reactions, which liberate energy stored in chemical bonds. This is chemical energy. In contrast, nuclear energy comes from the conversion of mass into energy when an nuclear reaction occurs. Geothermal energy comes directly from heat sources underground, with no chemical or nuclear reactions.</span>
