According to the nebular hypothesis, which of the following is true?

the nebula expanded outward.

gas and dust flattened into a disk shape.

the sun used up all the gases in the nebula.

the planets were created by the solar wind.

The law of the conservation of momentum says that the total momentum of any closed and isolated system cannot

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

What does the law of conservation of mass state?