In a college there are exactly 3000 students, exactly 60% are male. What is the number of female students

Total energy of a system including potential and kinetic

The first element of family 16

The bond that would form between Cs and Cl can be described as A an ionic bond because both atoms are strongly attracted to each other's electrons but will not let go of their own electrons, therefore they share the electrons.

What defines endothermic reactions and exothermic reactions? Select all that apply. A) Endothermic reactions are chemical reactions that absorb energy from the surrounding environment.

Which formula represents lead (II) chromate? (1) PbCrO4 (3) Pb2CrO4 (2) Pb (CrO4) 2 (4) Pb2 (CrO4) 3

Would you expect the h atoms to remain bonded to each other, or would the molecule fall apart?

Conductivity in a metal results from the metal atoms having (1) high electronegativity (2) high ionization energy (3) highly mobile protons in the nucleus (4) highly mobile electrons in the valence shell

All atoms are neutral. explain the basis of this fact

What is the ph of a solution containing 0.12mol/l of nh4cl and 0.03 mol/l of naoh (pka is 9.25) ?

A sample of an unknown compound with a mass of 0.847 g has the following composition: 50.51 % fluorine and 49.49 % iron. When this compound is decomposed into its elements, what mass of each element would be recovered?