PLS HELP, FIRST QUESTION ANSWER NEEDED

What is the earliest point in the universe that we can observe? why can’t we see back further than this?

Awalk up the phase change graph worksheet

According to valence bond theory, which orbitals overlap in the formation of the bond in hf according to valence bond theory, which orbitals overlap in the formation of the bond in hf 2s on h and 2p on f 1s on h and 2s on f 1s on h and 1p on f 1s on h and 2p on f 1s on h and 3p on f