If n = 2, what type of orbitals are possible?

1s, 2s, 2p, 3s, 3p, 3d

Which type of reaction always has an element and a compound as reactants

What are the genotypic and phenotypic ratios

For each of the following types of reactions, write a general reaction formula in the symbolic form—for example, a + b → ab. single-displacement double-displacement synthesis decomposition