R indicates round seeds that are dominant over the wrinkled variety, represented by r. For each numbered individual in the pedigree give the genotype and phenotype.

An atom of sodium-23 (atomic number = 11) has a positive charge of +1. give this information, how many electrons does it have? how many proteins and neutrons does this atom have

The molality of calcium chloride (cacl2) in an aqueous solution is 2.46 m. what is mole fraction of the solute?

Which description best characterizes the motion of particles in a solid?