The answer to this is: <span>resolution</span>
Be and B: Be is 1s2 2s2 and B is 1s2 2s2 2p1
Be has full 2 orbitals and so does B but B only has 1 electron in p so it is really unstable and easy to react. So there is a dip in ionization energies. The other questions are similar to this so if you need, feel free to ask me
H2O2 Is a chemical compound called hydrogen peroxide
2 correct answers: Chemical and neither endothermic or exothermic
Answer:
One characteristic of a sample of matter that indicates it is a pure substance is the <em>homogeneity of the molecular structure</em><em>.</em>
Explanation:
If the structure is the same all throughout such as liquid water, it is said to be homogenous.
